🛡️ CVE-2022-25236
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-668 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-668
Public Exploit ✅ No
Source NVD
Published 2022-02-16
Updated 2026-06-08
Modified 2025-05-05

Affected Packages

Software From version Fixed in
debian-linux
http-server
libexpat 2.4.5
sinema-remote-connect-server 3.1
zfs-storage-appliance-kit

References

Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/02/19/1
Patch, Third Party Advisory https://github.com/libexpat/libexpat/pull/561
Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/02/19/1
Patch, Third Party Advisory https://github.com/libexpat/libexpat/pull/561

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