Description

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.

INFO

Published Date :

2025-12-05T10:12:22.041Z

Last Modified :

2025-12-05T19:27:31.842Z

Source :

apache
AFFECTED PRODUCTS

The following products are affected by CVE-2025-55753 vulnerability.

Vendors Products
Apache
  • Http Server
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-55753.

URL Resource
http://www.openwall.com/lists/oss-security/2025/12/04/4 cve-icon
https://httpd.apache.org/security/vulnerabilities_24.html cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-55753 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-55753 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact