Integer overflow in Veeder-Root Tls4b Automatic Tank Gauge System

CVE-2025-55067

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.

Vulnerability class: Integer Overflow

EPSS: 0.004 (34.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-55067?
CVE-2025-55067 is a high-severity vulnerability in Veeder-Root Tls4b Automatic Tank Gauge System, classified under Integer Overflow or Wraparound. CVSS score: 7.1/10. Published 2025-10-23.
How severe is CVE-2025-55067?
High severity. CVSS v3 base score is 7.1 out of 10.