CVE-2025-55753 - Apache HTTP Server: mod_md (ACME), unintended retry intervals

CVE ID : CVE-2025-55753 Published : Dec. 5, 2025, 11:15 a.m. | 1 hour, 46 minutes ago 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. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

Source: Telegram CVE Monitor