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

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U

Exploit Status

Not Exploited

Patch Tuesday

2025-Dec

Released

2025-12-11

Last Updated

2025-12-20

EPSS Score

0.10% (percentile: 28.4%)

Affected Products (2)

Mariner

• cbl2 httpd 2.4.65-1 on CBL Mariner 2.0
• azl3 httpd 2.4.65-1 on Azure Linux 3.0

Revision History

• 2025-12-11: Information published.
• 2025-12-17: Information published.
• 2025-12-20: Information published.