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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-11623 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulDB
CVSS-BT 1.1 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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://gist.github.com/XlabAITeam/f0d9952595f795129a3258ba73bbc3cb VulDB
https://github.com/tmux/tmux/ VulDB
https://github.com/tmux/tmux/commit/fc6d94a9f8a593bd8b7031650802084385d4ee03 VulDB
https://github.com/tmux/tmux/releases/tag/3.7-rc VulDB
https://vuldb.com/cve/CVE-2026-11623 VulDB
https://vuldb.com/submit/835623 VulDB
https://vuldb.com/vuln/369303 VulDB
https://vuldb.com/vuln/369303/cti VulDB

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer VulDB  
CWE-416 Use After Free VulDB  

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-11623
NVD Published Date:
06/09/2026
NVD Last Modified:
07/23/2026
Source:
VulDB