CVE-2025-49796

A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
redhatCNA
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CISA-ADPADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 38%
Debian logo
Debian Releases
Debian Product
Codename
libxml2
bullseye
vulnerable
bullseye (security)
2.9.10+dfsg-6.7+deb11u8
fixed
bookworm
2.9.14+dfsg-1.3~deb12u4
fixed
bookworm (security)
2.9.14+dfsg-1.3~deb12u4
fixed
trixie (security)
2.12.7+dfsg+really2.9.14-2.1+deb13u1
fixed
trixie
2.12.7+dfsg+really2.9.14-2.1+deb13u1
fixed
forky
2.14.5+dfsg-0.2
fixed
sid
2.14.5+dfsg-0.2
fixed
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2025:10630
https://access.redhat.com/errata/RHSA-2025:10698
https://access.redhat.com/errata/RHSA-2025:10699
https://access.redhat.com/errata/RHSA-2025:11580
https://access.redhat.com/errata/RHSA-2025:12098
https://access.redhat.com/errata/RHSA-2025:12099
https://access.redhat.com/errata/RHSA-2025:12199
https://access.redhat.com/errata/RHSA-2025:12237
https://access.redhat.com/errata/RHSA-2025:12239
https://access.redhat.com/errata/RHSA-2025:12240
https://access.redhat.com/errata/RHSA-2025:12241
https://access.redhat.com/errata/RHSA-2025:13267
https://access.redhat.com/errata/RHSA-2025:13335
https://access.redhat.com/errata/RHSA-2025:15827
https://access.redhat.com/errata/RHSA-2025:15828
https://access.redhat.com/security/cve/CVE-2025-49796
https://bugzilla.redhat.com/show_bug.cgi?id=2372385