CVE-2022-25235
9.8CVSSCRITICAL
Description
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
and 16 more affected products View all →
Exploitability
Official Patch Available
References
https://github.com/libexpat/libexpat/pull/562
github.com
http://www.openwall.com/lists/oss-security/2022/02/19/1
openwall.com
https://www.debian.org/security/2022/dsa-5085
debian.org
and 39 more references View all →
Timeline
Published
Feb 16, 2022
Last Updated
May 5, 2025
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