What is CVE-2025-55753?

CVE-2025-55753 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Apache HTTP Server: mod_md (ACME), unintended retry intervals

Which CVE IDs does CVE-2025-55753 cover?

CVE-2025-55753 covers the following CVE IDs: CVE-2025-55753. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-55753?

CVE-2025-55753 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-55753?

CVE-2025-55753 affects 2 products, including: azl3 httpd 2.4.65-1 on Azure Linux 3.0; cbl2 httpd 2.4.65-1 on CBL Mariner 2.0.

CVE-2025-55753MediumCVSS 7.5

Apache HTTP Server: mod_md (ACME), unintended retry intervals

Vendor

Microsoft Security Response Center (MSRC)

Published

December 11, 2025

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-55753 →

🎯 Affected products2

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

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 2.4.66-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55753
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade