What is CVE-2026-4873?

CVE-2026-4873 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. connection reuse ignores TLS requirement

Which CVE IDs does CVE-2026-4873 cover?

CVE-2026-4873 covers the following CVE IDs: CVE-2026-4873. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-4873?

CVE-2026-4873 has a CVSS v3 base score of 5.9, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-4873?

CVE-2026-4873 affects 3 products, including: azl3 cmake 3.30.3-13 on Azure Linux 3.0; azl3 curl 8.11.1-6 on Azure Linux 3.0; azl3 curl 8.11.1-7 on Azure Linux 3.0.

CVE-2026-4873MediumCVSS 5.9

connection reuse ignores TLS requirement

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-4873 →

🎯 Affected products3

azl3 cmake 3.30.3-13 on Azure Linux 3.0
azl3 curl 8.11.1-6 on Azure Linux 3.0
azl3 curl 8.11.1-7 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 8.11.1-7 KBCBL-Mariner Releases (Security Update) — fixed build 3.30.3-14

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-4873
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade