What is CVE-2026-80891?

CVE-2026-80891 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. KVM: s390: pci: Validate AIBV and AISB before pinning guest pages

Which CVE IDs does CVE-2026-80891 cover?

CVE-2026-80891 covers the following CVE IDs: CVE-2026-80891. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-80891?

CVE-2026-80891 has a CVSS v3 base score of 5.9, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-80891?

CVE-2026-80891 affects 1 product, including: azl3 kernel 6.6.150.1-1 on Azure Linux 3.0.

CVE-2026-80891MediumCVSS 5.9

KVM: s390: pci: Validate AIBV and AISB before pinning guest pages

Vendor

Microsoft Security Response Center (MSRC)

Published

September 11, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-80891 →

🎯 Affected products1

azl3 kernel 6.6.150.1-1 on Azure Linux 3.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80891