CVE-2026-86138EPSS p2.3%

CVE-2026-86138CVE-2026-86138

xmlsoft / libxml2

Description

In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.

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 2.3% · 2026-10-05T12:00:23Z
Last modified2026-09-15
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.