CVE-2022-22823
9.8
CRITICAL
CVSS 3.1
EPSS 0.43%
Description
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
How to fix CVE-2022-22823
To remediate CVE-2022-22823, upgrade the affected package to a fixed version below.
- Alpine/expat—upgrade to 2.2.10-r0 or later
- Debian/expat—upgrade to 2.2.10-2+deb11u1 or later
- Debian/libxmltok—no fix listed
Is CVE-2022-22823 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.2.10-r0
- from 0, < 2.2.10-2+deb11u1
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |