VulnerabilityModified
CVE-2022-22822
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CRITICAL 9.8EPSS 4.83%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.83% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- libexpat project/libexpat · tenable/nessus · siemens/sinema remote connect server · debian/debian linux
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2022/01/17/3Mailing List, Release Notes, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfPatch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/539Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://www.debian.org/security/2022/dsa-5073Third Party Advisory
- https://www.tenable.com/security/tns-2022-05Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/01/17/3Mailing List, Release Notes, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfPatch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/539Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://www.debian.org/security/2022/dsa-5073Third Party Advisory
- https://www.tenable.com/security/tns-2022-05Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.