What is CVE-2025-12748?

CVE-2025-12748 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Libvirt: denial of service in xml parsing

Which CVE IDs does CVE-2025-12748 cover?

CVE-2025-12748 covers the following CVE IDs: CVE-2025-12748. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-12748?

CVE-2025-12748 has a CVSS v3 base score of 5.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-12748?

CVE-2025-12748 affects 5 products, including: azl3 libvirt 10.0.0-5 on Azure Linux 3.0; azl3 libvirt 10.0.0-6 on Azure Linux 3.0; azl3 libvirt 10.0.0-7 on Azure Linux 3.0; cbl2 libvirt 7.10.0-10 on CBL Mariner 2.0; cbl2 libvirt 7.10.0-11 on CBL Mariner 2.0.

CVE-2025-12748MediumCVSS 5.5

Libvirt: denial of service in xml parsing

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-12748 →

🎯 Affected products5

azl3 libvirt 10.0.0-5 on Azure Linux 3.0
azl3 libvirt 10.0.0-6 on Azure Linux 3.0
azl3 libvirt 10.0.0-7 on Azure Linux 3.0
cbl2 libvirt 7.10.0-10 on CBL Mariner 2.0
cbl2 libvirt 7.10.0-11 on CBL Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 10.0.0-7 KBCBL-Mariner Releases (Security Update) — fixed build 7.10.0-11

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-12748
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade