What is CVE-2026-8674?

CVE-2026-8674 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Assertion failure in the DNS stub resolver with a long search domain

Which CVE IDs does CVE-2026-8674 cover?

CVE-2026-8674 covers the following CVE IDs: CVE-2026-8674. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-8674?

CVE-2026-8674 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-8674?

CVE-2026-8674 affects 1 product, including: azl3 glibc 2.38-21 on Azure Linux 3.0.

CVE-2026-8674MediumCVSS 5.3

Assertion failure in the DNS stub resolver with a long search domain

Vendor

Microsoft Security Response Center (MSRC)

Published

September 19, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-8674 →

🎯 Affected products1

azl3 glibc 2.38-21 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8674
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade