CVE-2022-23990
HIGH 7.5EPSS 4.7%
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
- CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P - EPSS
- 4.69% chance of exploitation in the next 30 days, 92nd percentile
- Published
- 2022-01-26
- Updated
- 2026-10-14
Proof-of-concept exploits (2)
- Nivaskumark/expat_A10_r33_2_2_6_CVE-2022-239900★ · 2022-04-27
- Satheesh575555/external_expat_AOSP10_r33_CVE-2022-239900★ · 2022-04-28
Security advisories
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- libexpat/libexpat/pull/551
- https://security.gentoo.org/glsa/202209-24
- https://www.debian.org/security/2022/dsa-5073
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.tenable.com/security/tns-2022-05