CVE-2026-11623

LOW EPSS 2.5%
Published Jun 9, 20263w ago · Modified Jun 17, 20261w ago
1.1 CVSS 4.0
Low
Find Similar
Published Jun 9, 2026 3w ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
1.1
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
2.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-416 Use After Free Memory Safety

References 8

  • gist.github.com https://gist.github.com/XlabAITeam/f0d9952595f795129a3258ba73bbc3cb
  • github.com https://github.com/tmux/tmux/
  • github.com https://github.com/tmux/tmux/commit/fc6d94a9f8a593bd8b7031650802084385d4ee03
  • github.com https://github.com/tmux/tmux/releases/tag/3.7-rc
  • vuldb.com https://vuldb.com/cve/CVE-2026-11623
  • vuldb.com https://vuldb.com/submit/835623
  • vuldb.com https://vuldb.com/vuln/369303
  • vuldb.com https://vuldb.com/vuln/369303/cti

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.