Incident Score: Analysis & Impact (WOL1776198301)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of wolfSSL's Vulnerability and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts wolfSSL Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the wolfSSL breach identified under incident ID WOL1776198301.
The analysis begins with a detailed overview of wolfSSL's information like the linkedin page: https://www.linkedin.com/company/wolfssl, the number of followers: 2230, the industry type: Software Development and the number of employees: 49 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 751 and after the incident was 749 with a difference of -2 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on wolfSSL and their customers.
On 08 April 2026, wolfSSL disclosed Vulnerability Exploitation issues under the banner "Critical wolfSSL Flaw (CVE-2026-5194) Exposes 5 Billion Devices to Digital ID Forgery".
A severe vulnerability in the wolfSSL cryptographic library, tracked as CVE-2026-5194, has been discovered, impacting an estimated 5 billion devices across industries, including IoT, smart grids, automotive, aviation, and military systems.
The disruption is felt across the environment, affecting 5 billion devices.
In response, moved swiftly to contain the threat with measures like Patch released (wolfSSL 5.9.1), and began remediation that includes Enforced stricter hash and digest size validations.
The case underscores how Patched, teams are taking away lessons such as Importance of rigorous cryptographic validation in signature verification functions; challenges in patching legacy and embedded systems, and recommending next steps like Apply wolfSSL 5.9.1 patch immediately; audit and update legacy devices; implement enhanced monitoring for authentication bypass attempts.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Supply Chain Compromise (T1195) with high confidence (90%), with evidence including posing a significant supply chain risk, and wolfSSL cryptographic library vulnerability and Exploit Public-Facing Application (T1190) with moderate to high confidence (70%), supported by evidence indicating impacting an estimated 5 billion devices across industries. Under the Credential Access tactic, the analysis identified Steal or Forge Authentication Certificates (T1649) with high confidence (95%), with evidence including allows attackers to forge digital IDs and bypass authentication, and missing checks in wolfSSL’s signature verification functions and Modify Authentication Process (T1556) with moderate to high confidence (80%), supported by evidence indicating insufficient validation of digest sizes and Object Identifiers (OIDs). Under the Defense Evasion tactic, the analysis identified Subvert Trust Controls: Install Root Certificate (T1553.004) with moderate to high confidence (85%), supported by evidence indicating trick devices into trusting fake servers or malicious files and Exploitation for Defense Evasion (T1211) with moderate to high confidence (70%), supported by evidence indicating cVE-2026-5194 allows bypass of authentication. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with moderate confidence (60%), supported by evidence indicating impacting IoT, smart grids, automotive, aviation, and military systems. Under the Impact tactic, the analysis identified Endpoint Denial of Service: Application or System Exploitation (T1499.004) with moderate confidence (50%), supported by evidence indicating authentication bypass, supply chain risk and Data Manipulation: Transmitted Data Manipulation (T1565.002) with moderate to high confidence (70%), supported by evidence indicating forge digital IDs and bypass authentication. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- wolfSSL Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/wolfssl/incident/WOL1776198301
- wolfSSL CyberSecurity Rating page: https://www.rankiteo.com/company/wolfssl
- wolfSSL Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/wol1776198301-wolfssl-vulnerability-april-2026/
- wolfSSL CyberSecurity Score History: https://www.rankiteo.com/company/wolfssl/history
- wolfSSL CyberSecurity Incident Source: https://hackread.com/wolfssl-vulnerability-iot-routers-military-systems/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf