What is CVE-2026-2243?

CVE-2026-2243 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing

Which CVE IDs does CVE-2026-2243 cover?

CVE-2026-2243 covers the following CVE IDs: CVE-2026-2243. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-2243?

CVE-2026-2243 has a CVSS v3 base score of 5.1, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-2243?

CVE-2026-2243 affects 2 products, including: azl3 qemu 8.2.0-27 on Azure Linux 3.0; cbl2 qemu 6.2.0-26 on CBL Mariner 2.0.

CVE-2026-2243MediumCVSS 5.1

Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing

Vendor

Microsoft Security Response Center (MSRC)

Published

February 23, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-2243 →

🎯 Affected products2

azl3 qemu 8.2.0-27 on Azure Linux 3.0
cbl2 qemu 6.2.0-26 on CBL Mariner 2.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-2243