CVE-2026-56409CWE-190

xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used

Medium · published June 21, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
1.7
In the wild
Unconfirmed
What it is

xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00119 · 1.7th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-06-21T15:52Z
EPSS history
Timeline
  • 21 JUN 15:52Z
    xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used
    cvelistv5