Integer Overflow or Wraparound Affecting apache/httpd package, versions [2.4.30,2.4.66-rc1-candidate)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published9 Dec 2025
- disclosed5 Dec 2025
- creditAisle Research
Introduced: 5 Dec 2025
NewCVE-2025-55753 (opens in a new tab)How to fix?
Upgrade apache/httpd to version 2.4.66-rc1-candidate or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound causing improper handling of retry intervals in mod_md. An attacker can cause excessive requests to external ACME services by forcing failures that may reset the backoff counter for renewal attempts to 0.