What’s Vulnerable › Vulnerabilities

CVE-2023-52425

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-02-04 · updated 2026-10-15
• Weakness: CWE-400

Description

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

Affected products

• libexpat project libexpat: through 2.5.0

References

• http://www.openwall.com/lists/oss-security/2024/03/20/5
• https://github.com/libexpat/libexpat/pull/789
• https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
• https://security.netapp.com/advisory/ntap-20240614-0003/
• http://www.openwall.com/lists/oss-security/2024/03/20/5
• https://github.com/libexpat/libexpat/pull/789
• https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
• https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/

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