Detections
Analytics

CVE-2022-25235

critical

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.

References

https://www.oracle.com/security-alerts/cpuapr2022.html

https://www.debian.org/security/2022/dsa-5085

https://security.netapp.com/advisory/ntap-20220303-0008/

https://security.gentoo.org/glsa/202209-24

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/

https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html

https://github.com/libexpat/libexpat/pull/562

https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf

http://www.openwall.com/lists/oss-security/2022/02/19/1

Details

Source: Mitre, NVD

Published: 2022-02-16

Updated: 2025-05-05

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.08561