https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-01T20:54:18.226596+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2025-55753 CVE-2025-55753 — Apache HTTP Server: mod_md (ACME), unintended retry intervals 2026-10-01T20:54:18.230619+00:00

Affected: Apache Software Foundation Apache HTTP Server

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.