What is CVE-2025-11731?

CVE-2025-11731 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Libxslt: type confusion in exsltfuncresultcompfunction of libxslt

Which CVE IDs does CVE-2025-11731 cover?

CVE-2025-11731 covers the following CVE IDs: CVE-2025-11731. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-11731?

CVE-2025-11731 has a CVSS v3 base score of 3.1, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-11731?

CVE-2025-11731 affects 4 products, including: azl3 libxslt 1.1.43-1 on Azure Linux 3.0; azl3 libxslt 1.1.43-3 on Azure Linux 3.0; cbl2 libxslt 1.1.34-8 on CBL Mariner 2.0; cbl2 libxslt 1.1.34-9 on CBL Mariner 2.0.

CVE-2025-11731LowCVSS 3.1

Libxslt: type confusion in exsltfuncresultcompfunction of libxslt

Vendor

Microsoft Security Response Center (MSRC)

Published

November 21, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-11731 →

🎯 Affected products4

azl3 libxslt 1.1.43-1 on Azure Linux 3.0
azl3 libxslt 1.1.43-3 on Azure Linux 3.0
cbl2 libxslt 1.1.34-8 on CBL Mariner 2.0
cbl2 libxslt 1.1.34-9 on CBL Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.1.34-9 KBCBL-Mariner Releases (Security Update) — fixed build 1.1.43-2 KBCBL-Mariner Releases (Security Update) — fixed build 1.1.43-3

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-11731
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade