CVE-2022-25313

Name: CVE-2022-25313
Creator: NVD / NIST
Published: 2022-02-18T05:15:08.13+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 3.27%

Last modified Jun 17, 2026

CVE-2022-25313 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.. EPSS estimates a 3.27% chance of exploitation in the next 30 days.

Description

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

3.27%

86.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Libexpat Project	Libexpat	< 2.4.5
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Fedoraproject	Fedora	34
Fedoraproject	Fedora	35
Oracle	Http Server	12.2.1.3.0
Oracle	Http Server	12.2.1.4.0
Oracle	Zfs Storage Appliance Kit	8.8
Siemens	Sinema Remote Connect Server	< 3.1

References

http://www.openwall.com/lists/oss-security/2022/02/19/1Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
https://github.com/libexpat/libexpat/pull/558Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
https://security.gentoo.org/glsa/202209-24Third Party Advisory
https://security.netapp.com/advisory/ntap-20220303-0008/Third Party Advisory
https://www.debian.org/security/2022/dsa-5085Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/02/19/1Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
https://github.com/libexpat/libexpat/pull/558Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
https://security.gentoo.org/glsa/202209-24Third Party Advisory
https://security.netapp.com/advisory/ntap-20220303-0008/Third Party Advisory
https://www.debian.org/security/2022/dsa-5085Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory

Timeline

Published: Feb 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-25313?

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

How severe is CVE-2022-25313?

CVE-2022-25313 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.27% probability of exploitation in the next 30 days.

How do I fix CVE-2022-25313?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-25313?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST