VDB
CVE-2026-11623
CVE-2026-11623
PUBLISHED
CVSS 2 LOW
Reported by VulDB · Published June 9, 2026
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.
Risk Scores
CVSS 4.0
2
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
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | tmux | 3.6a, 3.7-rc |
| n/a | tmux | 3.6a, 3.7-rc, 3.6a |
Timeline
- Jun 9, 2026 CVE Published
- Jun 10, 2026 Coalition ESS Score
- Jun 10, 2026 Security Advisory
- Aug 7, 2026 EPSS Score
- Aug 24, 2026 EPSS Score
References
- VDB-369303 | tmux image.c image_free use after free vdb-entrytechnical-description
- VDB-369303 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
- CVE-2026-11623 | CVE Analysis and Report third-party-advisory
- Submit #835623 | tmux <= 3.6a Use After Free third-party-advisory
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