CVE-2026-11623CWE-119CWE-416

tmux image.c image_free use after free

Low · published June 9, 2026

CVSS v4.0
2.0
EPSS
0%
Percentile
2.0
In the wild
Unconfirmed
What it is

A security vulnerability has been detected in tmux up to 3.6a. Affected is the function image_free of the file image.c. Such manipulation leads to use after free. Local access is required to approach this attack. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. Upgrading to version 3.7-rc is able to address this issue. The name of the patch is fc6d94a9f8a593bd8b7031650802084385d4ee03. The affected component should be upgraded.

The record
Technical detail
CVSS v4.0
2.0 · LOW
Vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00124 · 2.0th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-416 · Use After Free
Published
2026-06-09T03:15Z
EPSS history
Timeline
  • 09 JUN 03:15Z
    tmux image.c image_free use after free
    cvelistv5