CVE-2026-56411EPSS p3.7%

CVE-2026-56411CVE-2026-56411

libexpat_project / libexpat

Description

xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.

Scoring

CVSS 6.9 ()
VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS0.14% probability of exploitation · percentile 3.7% · 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.