CVE-2026-94284CWE-125

CVE-2026-94284

Medium · published September 28, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
0.9
In the wild
Unconfirmed
What it is

An out-of-bounds read vulnerability in libX11's XIM trigger-key registration parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00103 · 0.9th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-28T13:17Z
References (1)
https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/310/diffs?commit_id=1b7904002d212eed40949ccf4e8e7156f9fec0e2 · [email protected]
EPSS history
Timeline
  • 29 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 28 SEP 08:42Z
    Out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser
    cvelistv5