AUGUST 4, 2026
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Case File

CVE-2025-55753

HIGH · CVSS 7.5 EPSS 0.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-12-05 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Apache.

CVE
CVE-2025-55753
Severity
HIGH
CVSS
7.5
EPSS
0.44%
Apache

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)