Comparison Overview
Telmex

Telmex
Parque Vía 190, Ciudad de México, 06500, MX
Last Update: 02/04/2026
TELMEX, la empresa líder de telecomunicaciones y servicios TI en México, ha realizado importantes inversiones para desarrollar la plataforma tecnológica más robusta y vanguardista del país, que le permite ofrecer la más amplia gama de soluciones, con los mayores estánda...

AT&T
208 S. Akard Street, Dallas, 75202, US
Last Update: 17/06/2026
We understand that our customers want an easier, less complicated life. We’re using our network, labs, products, services, and people to create a world where everything works together seamlessly, and life is better as a result. How will we continue to drive for thi...
Compliance Ranges Comparison

Telmex







AT&T






Benchmark & Cyber Underwriting Signals
Incidents vs Telecommunications Industry Avg (This Year)
No incidents recorded for Telmex in 2026.
Incidents vs Telecommunications Industry Avg (This Year)
AT&T has 661.9% more incidents than the average of all companies with at least one recorded incident.
Incident History - Telmex (X = Date, Y = Severity)
Telmex cyber incidents detection timeline including parent company and subsidiaries.
Incident History - AT&T (X = Date, Y = Severity)
AT&T cyber incidents detection timeline including parent company and subsidiaries.
Notable Incidents

Telmex

AT&T
FAQ
Latest Global CVEs
An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite (NCS), Manage Control Plan (MCP), and Blue Planet products. The issue is caused by improper handling of HTTP request paths and headers, which allows an unauthenticated attacker to manipulate requests in a manner that bypasses authentication and associated audit logging controls.
In Ciena's Navigator Network Control Suite (NCS) and Manage Control Plan (MCP), there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker could combine an attack using one of these accounts with other potential weaknesses to launch a more significant attack, possibly leading to escalation of privilege on the system.
Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded function in source/core/interface/decoder.cpp
Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the j2k_precinct_subband::parse_packet_header() in source/core/coding/coding_units.cpp
Incorrect access control in the /api/License/deactivateOffline endpoint of CAXPerts UniversalPlantViewer WebServices Server v2.7.6 allows authenticated attackers with low-level privileges to cause a Denial of Service (DoS) via removing the license from the webserver.