JLSEC-2025-87

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElem...

JLSEC Published: Oct 17, 2025
Modified: Oct 31, 2025
Affected Packages: XML2_jll < 2.13.6+1
Aliases / Upstream: CVE-2025-24928

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047.

References

https://gitlab.gnome.org/GNOME/libxml2/-/issues/847
https://issues.oss-fuzz.com/issues/392687022
https://security.netapp.com/advisory/ntap-20250321-0006/