Integer Overflow or Wraparound Affecting apache2-compat package, versions <2.4.66-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-APACHE2COMPAT-14268791
  • published10 Dec 2025
  • disclosed5 Dec 2025

Introduced: 5 Dec 2025

CVE-2025-55753  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Minimos:latest apache2-compat to version 2.4.66-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2-compat package and not the apache2-compat package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds.

This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66.

Users are recommended to upgrade to version 2.4.66, which fixes the issue.

CVSS Base Scores

version 3.1