CVE-2025-55067
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BaseFortify

Publication date: 2025-10-23

Last updated on: 2025-10-27

Assigner: ICS-CERT

Description
The TLS4B ATG system is vulnerable to improper handling of Unix time values that exceed the 2038 epoch rollover. When the system clock reaches January 19, 2038, it resets to December 13, 1901, causing authentication failures and disrupting core system functionalities such as login access, history visibility, and leak detection termination. This vulnerability could allow an attacker to manipulate the system time to trigger a denial of service (DoS) condition, leading to administrative lockout, operational timer failures, and corrupted log entries.
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Meta Information
Published
2025-10-23
Last Modified
2025-10-27
Generated
2026-06-16
AI Q&A
2025-10-23
EPSS Evaluated
2026-06-15
NVD
CVE-2025-55067
EUVD
EUVD-2025-35716
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
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Executive Summary

This vulnerability occurs because the TLS4B ATG system improperly handles Unix time values that exceed the 2038 epoch rollover. When the system clock reaches January 19, 2038, it resets incorrectly to December 13, 1901. This causes authentication failures and disrupts core system functions such as login access, history visibility, and leak detection termination. An attacker could exploit this by manipulating the system time to trigger a denial of service condition.

Impact Analysis

The vulnerability can lead to denial of service conditions by causing administrative lockout, failures in operational timers, and corrupted log entries. This disruption affects critical system functionalities like user authentication and security monitoring, potentially preventing legitimate access and impairing system reliability.

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