VULNERABILITY INTELLIGENCE

CVE-2026-56406

CVSS score6.9 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-06-21
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Description

libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.

Weakness classification

  • CWE-190: Integer Overflow or Wraparound

Primary references