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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.

PUBLISHED Reserved 2025-09-23 | Published 2025-10-23 | Updated 2025-10-23 | Assigner icscert




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

HIGH: 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Problem types

CWE-190 Integer Overflow or Wraparound

Product status

Default status
unaffected

Any version before 11.A
affected

Credits

Pedro Umbelino of Bitsight reported these vulnerabilities to CISA. reporter

References

www.cisa.gov/news-events/ics-advisories/icsa-25-296-03

www.veeder.com/us/network-security-reminder

github.com/...p/csaf_files/OT/white/2025/icsa-25-296-03.json

cve.org (CVE-2025-55067)

nvd.nist.gov (CVE-2025-55067)

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