CVE-2026-56406EPSS p3.3%

CVE-2026-56406CVE-2026-56406

libexpat_project / libexpat

Description

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

Scoring

CVSS 6.9 ()
VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS0.13% probability of exploitation · percentile 3.3% · 2026-08-06T12:00:30Z
Last modified2026-06-23
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.