DEBIAN-CVE-2022-23852
Advisory lineage Upstream: 1 Downstream: 3
Upstream
Downstream
Published: 24 Jan 2022, 02:15
Last modified:28 Apr 2026, 20:23
Vulnerability Summary
Overall Risk (default)
high
70/100 CVSS Score
9.8 CRITICAL
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
24 Jan 2022, 02:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:23
Last Modified
Vulnerability information updated
Description
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
CVSS Metrics
- v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Systems
- debian•expat
< 2.2.10-2+deb11u1 | < 2.4.3-2 | < 2.4.3-2 | < 2.4.3-2
- debian•libxmltok
all | all