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CVE-2026-56001

Updated on 08 Jul 2026

Severity

8.5 High severity

Details

CVSS score
8.5
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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

Details

Affected product:
AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 7 ELS , Oracle Linux 7 ELS , TuxCare 9.6 ESU
Affected packages:
libXfont2 @ 2.0.3 (+4 more)