CVE-2026-56001
8.8
HIGH
CVSS 3.1
EPSS 0.38%
Description
A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont
How to fix CVE-2026-56001
To remediate CVE-2026-56001, upgrade the affected package to a fixed version below.
- Debian/libxfont—upgrade to 1:2.0.4-1+deb11u1 or later
Is CVE-2026-56001 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:2.0.4-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |