CVE-2026-56409: xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.
Overview
- Severity
- Medium (CVSS 6.5)
- CVSS Vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Jun
- Released
- 2026-06-27
- EPSS Score
- 0.10% (percentile: 1.0%)
Affected Products (1)
Open Source Software
- azl3 expat 2.6.4-6 on Azure Linux 3.0
Revision History
- 2026-06-27: Information published.