What is CVE-2026-4891?

CVE-2026-4891 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. CVE-2026-4891

Which CVE IDs does CVE-2026-4891 cover?

CVE-2026-4891 covers the following CVE IDs: CVE-2026-4891. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-4891 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

CVE-2026-4891 affects 2 products, including: azl3 dnsmasq 2.90-1 on Azure Linux 3.0; azl3 dnsmasq 2.92-1 on Azure Linux 3.0.

CVE-2026-4891MediumCVSS 5.3

Vendor

Published

May 22, 2026

Last Modified

—

KBCBL-Mariner Releases (Security Update) — fixed build 2.92-1