What is the official website of T-Mobile Czech Republic a.s. ?

The official website of T-Mobile Czech Republic a.s. is http://www.t-mobile.cz.

What is T-Mobile Czech Republic a.s.'s cybersecurity risk score?

T-Mobile Czech Republic a.s. has an AI-generated cybersecurity risk score of 760 out of 1000, indicating a Fair security posture according to Rankiteo's assessment.

How many security incidents has T-Mobile Czech Republic a.s. experienced?

According to Rankiteo, T-Mobile Czech Republic a.s. currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has T-Mobile Czech Republic a.s. been affected by any supply chain cyber incidents ?

According to Rankiteo, T-Mobile Czech Republic a.s. has been affected by a supply chain cyber incident involving Lovable, with the incident ID LOV1776717678.

Does T-Mobile Czech Republic a.s. have SOC 2 Type 1 certification ?

According to Rankiteo, T-Mobile Czech Republic a.s. is not certified under SOC 2 Type 1.

Does T-Mobile Czech Republic a.s. have SOC 2 Type 2 certification ?

According to Rankiteo, T-Mobile Czech Republic a.s. does not hold a SOC 2 Type 2 certification.

Does T-Mobile Czech Republic a.s. comply with GDPR ?

According to Rankiteo, T-Mobile Czech Republic a.s. is not listed as GDPR compliant.

Does T-Mobile Czech Republic a.s. have PCI DSS certification ?

According to Rankiteo, T-Mobile Czech Republic a.s. does not currently maintain PCI DSS compliance.

Does T-Mobile Czech Republic a.s. comply with HIPAA ?

According to Rankiteo, T-Mobile Czech Republic a.s. is not compliant with HIPAA regulations.

Does T-Mobile Czech Republic a.s. have ISO 27001 certification ?

According to Rankiteo,T-Mobile Czech Republic a.s. is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Which industry does T-Mobile Czech Republic a.s. operate in ?

T-Mobile Czech Republic a.s. operates primarily in the Telecommunications industry.

How many employees does T-Mobile Czech Republic a.s. have ?

T-Mobile Czech Republic a.s. employs approximately 2,010 people worldwide.

Does T-Mobile Czech Republic a.s. own any subsidiaries ?

T-Mobile Czech Republic a.s. presently has no subsidiaries across any sectors.

How many LinkedIn followers does T-Mobile Czech Republic a.s. have ?

T-Mobile Czech Republic a.s.'s official LinkedIn profile has approximately 22,793 followers.

What is the NAICS classification code for T-Mobile Czech Republic a.s. ?

T-Mobile Czech Republic a.s. is classified under the NAICS code 517, which corresponds to Telecommunications.

Does T-Mobile Czech Republic a.s. have a Crunchbase profile ?

No, T-Mobile Czech Republic a.s. does not have a profile on Crunchbase.

Does T-Mobile Czech Republic a.s. have a LinkedIn profile ?

Yes, T-Mobile Czech Republic a.s. maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/t-mobile-czech-republic.

How many cybersecurity incidents has T-Mobile Czech Republic a.s. experienced ?

As of July 26, 2026, Rankiteo reports that T-Mobile Czech Republic a.s. has experienced 1 cybersecurity incidents.

How many peer or competitor companies does T-Mobile Czech Republic a.s. have ?

T-Mobile Czech Republic a.s. has an estimated 10,247 peer or competitor companies worldwide.

What types of cybersecurity incidents has T-Mobile Czech Republic a.s. faced ?

Incident Types: The types of cybersecurity incidents that have occurred include Breach.

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TCRA

Boost Score +25 with badge (5 left)

760

/1000

Fair

785

/1000

Fair

T-Mobile Czech Republic a.s. Vendor Cyber Rating & Cyber Score

t-mobile.cz

Add Your Compliance Badge

T-Mobile Czech Republic, člen mezinárodní telekomunikační skupiny Deutsche Telekom, je téměř se 6,5 milionu mobilních zákazníků jedničkou na českém trhu. Jsme dokonale integrovaným mobilním operátorem a kromě telekomunikačních služeb nabízíme také komplexní ICT řešení pro firmy, organizace a jednotlivce. Poskytujeme špičkové služby ve vysokorychlostní síti a nejmodernější technologické inovace. Náš úspěch je řízen vynikajícím týmem lidí, kteří dokážou maximálně podporovat naše zákazníky. Slogan „Pro společné zážitky“ tedy není pouhou reklamní frází, ale realitou. Práce u nás je stejně pestrá a zajímavá jako naše nabídka. Za to vám ručíme. Pracovní příležitosti – Připojte se k nám! Začněte svou kariéru u jednoho z nejatraktivnějších

TCRA A.I CyberSecurity Scoring

Scoring History

TCRA

T-Mobile Czech Republic a.s. CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

View

Deutsche Telekom

Breach

4/2026

Lovable

LOV1776717678

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A.I.

TCRA Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for TCRA

Incidents vs Telecommunications Industry Avg (This Year)

No incidents recorded for T-Mobile Czech Republic a.s. in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for T-Mobile Czech Republic a.s. in 2026.

Incident Types TCRA vs Telecommunications Industry Avg (This Year)

No incidents recorded for T-Mobile Czech Republic a.s. in 2026.

Incident History - TCRA (X = Date, Y = Severity)

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SUBSIDIARY

T-Mobile Czech Republic a.s. Subsidiaries

TCRA

Telecommunications

Website: http://www.t-mobile.cz

Company Size: 1,001-5,000 employees

Deutsche TelekomTelecommunications

T-Systems InternationalIT Services and IT Consulting

T-Systems MéxicoIT Services and IT Consulting

T-Systems Nederland B.V.IT Services and IT Consulting

T-Systems CloudIT-Dienstleistungen und IT-Beratung

T-Systems do BrasilIT Services and IT Consulting

T-Security ConnectAtividades de monitoramento de sistemas de segurança

T-Systems ICT India Pvt. Ltd.IT Services and IT Consulting

T-Systems IberiaIT Services and IT Consulting

Agile Hub T-Systems IberiaServicios y consultoría de TI

DigiCloudServicios y consultoría de TI

GIMM SolutionsIT Services and IT Consulting

J-EDI Digital SolutionsInformation Technology & Services

Deutsche Telekom Digital LabsTelecommunications

Deutsche Telekom IoTIT Services and IT Consulting

Hrvatski TelekomTelecommunications

Telekom HUTelecommunications

T BusinessTelekommunikation

T-Systems SingaporeIT Services and IT Consulting

DeteconBusiness Consulting and Services

T-Mobile PolskaTelecommunications

Deutsche Telekom Services Europe Romania (DTSE Romania)Outsourcing and Offshoring Consulting

T-Mobile Czech RepublicTelekomunikace

Makedonski Telekom ADTelecommunications

Slovak TelekomTelecommunications

Deutsche Telekom Cloud ServicesTelecommunications

Deutsche Telekom IT Solutions SlovakiaIT Services and IT Consulting

Deutsche Telekom Global CarrierTelekommunikation

Telekom Business EuropeTelecommunications

T-Mobile Biznes PolskaTelecommunications

T-Systems Hungary Ltd.IT Services and IT Consulting

Telekom TechBoostTelekommunikation

Deutsche Telekom Global BusinessTelecommunications

Telekom MMSIT Services and IT Consulting

T-Systems MMSIT Services and IT Consulting

T-Systems SwitzerlandIT Services and IT Consulting

Telekom Strategy ConsultingTelekommunikation

T-Systems UKIT Services and IT Consulting

Cyber Security at T-SystemsIT Services and IT Consulting

T-Systems VamosaIT Services and IT Consulting

congstarTelecommunications

T-Systems AustriaInformation Technology & Services

Digitales GesundheitswesenWellness und Fitness

Deutsche Telekom StiftungNon-profit Organizations

Deutsche Telekom Services Europe - Czech RepublicOutsourcing and Offshoring Consulting

T-Systems RomaniaIT Services and IT Consulting

Inflight Services of Deutsche TelekomTelekommunikation

T-Systems NordicIT Services and IT Consulting

Deutsche Telekom Investor RelationsTelekommunikation

T SportTelecommunications

T-Mobile Polska Business Solutions IT Services and IT Consulting

MagentaZuhauseTelekommunikation

Deutsche Telekom HealthcareHospitals and Health Care

LIFECARE Laboratorium InformatiesysteemZiekenhuizen en gezondheidszorg

Deutsche Telekom UK LimitedTelecommunications

Deutsche Telekom Global Business Solutions FranceInformation Technology & Services

T-Systems FranceIT Services and IT Consulting

Deutsche Telekom - Digital, Experience & DeliveryTelecommunications

Deutsche Telekom Services Europe - SlovakiaOutsourcing and Offshoring Consulting

Deutsche Telekom Design & Customer ExperienceTelecommunications

Deutsche Telekom Clinical Solutions India Pvt. Ltd.IT Services and IT Consulting

Deutsche Telekom EU PolicyTelecommunications

Telekom Open SpacesTelekommunikation

DeTeAssekuranz Vermittlungsgesellschaft mbHInsurance

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T-Mobile Czech Republic a.s. Similar Companies

TELUS

telus.com

At TELUS, our purpose-driven team works together every day to innovate and do good. From providing technology solutions that make our lives safer and easier, to supporting those who need it most, our inclusive, spirited and giving people are passionate about empowering our customers, communities and each other to thrive in our digital world. A company that helps you be your best self at home and at work: Find a place where you truly belong, your opinions are valued and you can be your best self. A career that ignites your full potential: Get the guidance and support you need to explore your interests, build your skills and get where you want to go. A culture that goes beyond the expected to strengthen communities and the planet: Seize the opportunity to make a difference in our communities and do good for our planet as part of our purpose-driven team. An innovative team committed to solving complex, real world problems: Join a digitally-enabled workforce that’s pushing the boundaries to create sustainable change. We're always building Canada, join us at www.telus.com/careers

Telenor

telenor.com

EMPOWERING SOCIETIES. CONNECTING YOU TO WHAT MATTERS MOST. Telenor Group is a leading telecommunications company across the Nordics and Asia with 158 million subscribers and annual sales of around NOK 99 billions (2022). We are committed to responsible business conduct and driven by the ambition of empowering societies. Connectivity has been Telenor’s domain for more than 165 years, and our purpose is to connect our customers to what matters most. We have four behaviours that guide the way we work: • Always Explore. We believe growth comes from learning every day. We’re curious and we dare to challenge, test, fail fast and pivot. • Create together. We believe diverse teams find better solutions. We seek different perspectives, share, involve and help each other succeed. • Keep promises. We believe that trust is key in all our relationships. We take ownership and pride in delivering with precision and integrity. • Be respectful. We believe in the unique human ability to understand what matters for people. We meet everyone at eye level, listen and show that we care. Telenor is listed at Oslo Stock Exchange under the ticker TEL. For more information, please visit www.telenor.com.

Telefónica

cb telefonica.com

Telefónica is today one of the largest telecommunications companies in the world in terms of market capitalisation and number of customers. We have the best infrastructure, as well as an innovative range of digital and data services; therefore, we are favorably positioned to meet the needs of our customers and capture growth in new businesses. We are sensitive to the new challenges demanded by society today and, therefore, we provide the means to facilitate communication between people, providing them with the most secure and cutting-edge technology. Our vision is focused on technology making people's lives easier and our aim is to promote progress in that direction, so that technology can make a positive impact on the world both socially and environmentally, and, ultimately, so as to provide value and trust in an ever-changing and accelerating world. Digital life is life itself, and technology is an essential part of being human. We want to create, protect and boost connections in life so people can choose a world of unlimited possibilities. We want to be a company in which our clients, employees, suppliers, shareholders, and society in general can trust. In order to achieve this, we communicate our strategy, business model and most relevant data to our stakeholders in a clear and transparent manner, so as to show the company's ability to create value.

KPN

kpn.com

Welkom bij de LinkedIn pagina van KPN. Sinds jaar en dag maakt KPN technologie toegankelijk. Hier leest u alles over de ontwikkelingen rondom de thema’s die KPN belangrijk vindt, zoals Het Nieuwe Leven & Werken, Veiligheid & Privacy en ICT-infrastructuur. Ook een transparante en betrouwbare dienstverlener zijn, efficiency in de zorg en duurzaam ondernemen staan bij ons hoog in het vaandel. Op onze pagina blijft u op de hoogte van het laatste nieuws rondom onze activiteiten, de thema’s in uw leven waarin technologie een rol speelt en onze producten en services op het gebied van ICT. Ontdek samen met ons voor u en uw organisatie de beste oplossingen.

Rogers Communications

rogers.com

Rogers is Canada’s communications and entertainment company, driven to connect and entertain Canadians. For more information, please visit rogers.com  or  investors.rogers.com. Déterminée à connecter et à divertir les Canadiens et Canadiennes, Rogers est la référence canadienne en matière de communications et de divertissement. Pour en savoir plus, visitez rogers.com ou investisseurs.rogers.com. This LinkedIn company page is moderated. For more info, please review our commenting policy here: http://roge.rs/2ofPXLN

Grupo Televisa

televisa.com

Televisa es una gran corporación de telecomunicaciones que posee y opera una de las compañías de cable más relevantes y un sistema líder de televisión de paga vía satélite en México. El negocio de cable de Televisa ofrece servicios integrales que incluyen video, servicios de datos de alta velocidad y servicios de voz a clientes residenciales y comerciales, así ́como servicios administrados a empresas de telecomunicación locales e internacionales. Televisa posee una participación mayoritaria en Sky, un sistema líder de televisión de paga directa al hogar vía satélite y proveedor de banda ancha que opera en México, la República Dominicana y Centroamérica. Televisa es titular de una serie de concesiones del gobierno mexicano que le autorizan a transmitir programación a través de estaciones de televisión para las señales de TelevisaUnivision, Inc. (“TelevisaUnivision”), y los sistemas de cable y televisión satelital de Televisa. Además, Televisa es el mayor accionista de TelevisaUnivision, la compañía controladora de Univision Communications Inc., una empresa de medios líder en la producción, creación y distribución de contenido en español a través de varios canales de transmisión en México, Estados Unidos y a más de 70 países a través de operadores de cable, canales de televisión y servicios adicionales por internet (“OTT”, por sus siglas en inglés). Televisa también tiene intereses en la publicación y distribución de revistas, deportes profesionales y entretenimiento en vivo, y juegos.

VEON

cb veon.com

VEON is a global digital operator headquartered in Dubai, providing connectivity and digital services across dynamic frontier markets that are home to more than 6% of the world’s population. With our digital operators, we transform lives through technology-driven services that empower millions and drive economic growth. Social media guidelines: We want everybody to have a positive and welcoming experience across the social media channels we use - and so we ask that everyone keeps their comments and discussions on VEON's page, or posts tagging the company, respectful to other members and our teams. Content which is abusive or harassing, obscene, deceptive or misleading, contains false or defamatory information, is discriminatory against any individual or group, or is considered spam may be removed - including reporting and blocking users responsible from our social media channels.

Ooredoo Group

ooredoo.com

We are an award-winning international communications company operating across the Middle East, North Africa and Southeast Asia. Serving consumers and businesses in 10 countries, we deliver a leading data experience through a broad range of content and services via our advanced, data-centric mobile and fixed networks. With a customer base of more than 138 million people, we work hard to provide the best customer and network experience we can. We believe in the power of mobile technology to bring about social and economic progress.

Vivo (Telefônica Brasil)

vivo.com.br

Vivo (Telefônica Brasil) is part of the Telefónica Group and with more than 94 million customers, of which 75 million mobile and 19 million fixed, we are the largest telecommunications company in Brazil, with nationwide presence and a complete, convergent portfolio of products, combining fixed, mobile and digital services. Our purpose is “Digitalize to Bring Closer”, helping to build a digital nation and transforming the life of our customers. More and more, we connect people and things with Fiber, 4G and 4.5G and cover more cities with the network quality that only Vivo has. Today, we cover around 90% of the population with 4G and are accelerating the launch of cities with 4.5G, using carrier aggregation technology. In the fixed operation, we ended 2019 with 21 million homes-passed (HPs) with fiber optic technology, of which 11 million HPs with FTTH (fiber to the home). In addition, all cities with FTTH technology also offer TV over fiber (IPTV), aiming to offer the best speed and experience to our consumers. At Vivo, we also do more than just telecommunications. Within the Group, we have the Telefônica Vivo Foundation, that is committed to making education a priority, developing projects that are based on human potential and use technology as an instrument in favor of inclusion and digital culture.

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NEWS

T-Mobile Czech Republic a.s. CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

January 19, 2026 08:00 AM

Europe steps up sovereignty with AI ramping and rumored vendor axing

Huawei and ZTE under threat as EU emboldens security, as European AI gigafactories take a step closer to reality.

Read Article

November 05, 2025 08:00 AM

Brno venue ‘ring in’ as T-Mobile Arena

The new multipurpose arena in Brno, Czech Republic, will bear the name T-Mobile ARENA and open in Autumn 2026.

Read Article

November 03, 2025 08:00 AM

Deutsche Telekomwatch: New network chief; FWA and Wi-Fi boosts; Poland innovates on B2B

Hello from the TelcoTitans Deutsche Telekomwatch team and welcome to the latest edition of our Briefing. While T-Mobile US hogged the...

Read Article

October 13, 2025 07:00 AM

Deutsche Telekom brings in hackers to find 5G bugs

Deutsche Telekom challenged ethical hackers to attack 5G infrastructure in a bug bounty contest hosted together with T-Mobile.

Read Article

October 06, 2025 07:00 AM

Deutsche Telekomwatch Analyst Briefing: DT cuts loose on Europe regs, goes B2B shopping

Deutsche Telekom strengthens its Europe division by finally jettisoning poorly performing and positioned outlier Telekom Romania Mobile.

Read Article

October 02, 2025 07:00 AM

T-Mobile Forced to Adopt Better Security Practises by FCC

T-Mobile has agreed to make changes to its cybersecurity practises following consecutive data breaches. After breaches were experienced in...

Read Article

May 28, 2025 07:00 AM

Deutsche Telekom centres on RAN challenges with new R&D boss

Key RAN development exec Petr Ledl is to take over as Head of DT's T-Labs unit, with a brief to grapple with “complex technology concepts in...

Read Article

May 07, 2025 07:00 AM

T-Mobile Czech Republic Completes Billing & Charging System Upgrade with Amdocs

Completion of this upgrade ensures seamless service continuity and operational efficiency, enhancing customer experience by enabling faster,...

Read Article

February 04, 2025 08:00 AM

ZICTA partners with Zambia Defence Force to strengthen cyber security

Zambia Information and Communications Technology Authority (ZICTA) has expanded its collaboration with the Zambia Defence Force (ZDF) in an...

Read Article

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-10681

SUMMARY

In Zephyr's userspace dynamic-objects subsystem, thread_idx_alloc() in kernel/userspace/userspace.c allocated a new thread permission index from the global _thread_idx_map[] bitmap without holding lists_lock. On SMP systems, two user-mode threads invoking the k_object_alloc(K_OBJ_THREAD) syscall concurrently can both observe the same low free bit, perform the same non-atomic RMW to clear it, and return the identical tidx. The two newly created K_OBJ_THREAD objects are then assigned the same thread_id, so the two user threads alias a single bit position in every kernel object's perms[] bitfield: any subsequent grant of access on a kernel object to one thread is implicitly a grant to the other, defeating userspace ACL isolation. A secondary lost-update window between the unlocked &=~BIT() in alloc and the locked |= BIT() in thread_idx_free() can also leak entries from the thread-index pool. The defect is reachable from any user-mode thread via the unrestricted __syscall k_object_alloc and is gated on CONFIG_USERSPACE, CONFIG_DYNAMIC_OBJECTS, and CONFIG_SMP. The flaw was introduced when the per-thread permission index was added in 2018 and is present in every release up to and including v4.4.0. Fixed by holding lists_lock across the bitmap RMW and the permissions clear (and inlining the obj_list traversal that previously took the lock itself).

Published

Date2026-07-25

Updated

Date2026-07-25

RISK INFORMATION (Score: 6.5)

cvss3

Base Score: 6.5

Complexity: HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Impact Score

5.5

Exploitability

REFERENCES

CVE-2026-66013

SUMMARY

OpenRemote before 1.26.2 contains an authentication bypass vulnerability in the console registration API that allows unauthenticated attackers to update existing console assets by supplying a known asset identifier. Attackers can overwrite push notification tokens and console metadata without authentication or ownership validation, redirecting notifications or denying delivery to legitimate consoles.

Published

Date2026-07-25

Updated

Date2026-07-25

RISK INFORMATION (Score: )

cvss4

Base Score: 9.3

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Impact Score

Exploitability

REFERENCES

CVE-2026-66012

SUMMARY

SiYuan before v3.7.2 contains a missing authorization vulnerability in the POST /mcp kernel endpoint, which is gated only by a general auth check (model.CheckAuth) with no admin-role or read-only enforcement. This exposes 31 MCP tools, including a file tool with list/read/write/delete/rename/copy actions across the entire workspace. When the Publish server is enabled in anonymous mode (Conf.Publish.Enable=true and Conf.Publish.Auth.Enable=false), the Publish reverse proxy attaches an anonymous RoleReader JWT to proxied requests, allowing a remote unauthenticated attacker to reach /mcp. The attacker can read conf/conf.json to extract accessAuthCode, api.token, and cookieKey in plaintext, write arbitrary files in the workspace, and plant a plugin into data/plugins/ that executes with nodeIntegration:true and no contextIsolation on the next desktop launch, leading to administrator takeover.

Published

Date2026-07-25

Updated

Date2026-07-25

RISK INFORMATION (Score: 10)

cvss3

Base Score: 10.0

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

cvss4

Base Score: 10.0

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Impact Score

Exploitability

3.9

REFERENCES

CVE-2026-66011

SUMMARY

ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources.

Published

Date2026-07-25

Updated

Date2026-07-25

RISK INFORMATION (Score: 3.3)

cvss3

Base Score: 3.3

Complexity: LOW

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

cvss4

Base Score: 4.8

Complexity: LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Impact Score

1.4

Exploitability

1.8

REFERENCES

CVE-2026-64529

SUMMARY

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - remove unused character device and IOCTLs The QAT driver exposes a character device (qat_adf_ctl) with IOCTLs for device configuration, start, stop, status query and enumeration. These IOCTLs are not part of any public uAPI header and have no known in-tree or out-of-tree users. Device lifecycle is already managed via sysfs. The ioctl interface also increases the attack surface and is the subject of a number of bug reports. Remove the character device, the IOCTL definitions, and the related data structures (adf_dev_status_info, adf_user_cfg_key_val, adf_user_cfg_section, adf_user_cfg_ctl_data). Drop the now-unused adf_cfg_user.h header and strip adf_ctl_drv.c down to the minimal module_init/module_exit hooks for workqueue, AER, and crypto/compression algorithm registration. Clean up leftover dead code that was only reachable from the removed IOCTL paths: adf_cfg_del_all(), adf_devmgr_verify_id(), adf_devmgr_get_num_dev(), adf_devmgr_get_dev_by_id(), adf_get_vf_real_id() and the unused ADF_CFG macros. Additionally, drop the entry associated to QAT IOCTLs in ioctl-number.rst.

Published

Date2026-07-25

Updated

Date2026-07-25

RISK INFORMATION (Score: )

Impact Score

Exploitability

REFERENCES

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SBOM (Software Bill of Materials)Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.

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