What is CVE-2025-12863?

CVE-2025-12863 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2

Which CVE IDs does CVE-2025-12863 cover?

CVE-2025-12863 covers the following CVE IDs: CVE-2025-12863. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-12863?

CVE-2025-12863 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

CVE-2025-12863HighCVSS 7.5

Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-12863 · pending