CVE-2022-22822
CRITICAL 9.8EPSS 5.1%
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 5.10% chance of exploitation in the next 30 days, 92nd percentile
- Published
- 2022-01-08
- Updated
- 2026-10-14
Proof-of-concept exploits (1)
Security advisories
- http://www.openwall.com/lists/oss-security/2022/01/17/3
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- libexpat/libexpat/pull/539
- https://security.gentoo.org/glsa/202209-24
- https://www.debian.org/security/2022/dsa-5073
- https://www.tenable.com/security/tns-2022-05