Trending
CVE-2026-11623

CVE detail

CVE-2026-11623

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 1.1 · LowBuzz score 30.0

Buzz score

Why this CVE is surfacing

Buzz score total 30.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

22.0

8 evidence mentions in the snapshot

Diversity score

8.0

3 sources across 1 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

8 source links · newest first

https://vuldb.com/vuln/369303/ctivuldb.com
No excerpt available.
Exploitvuldb.comJun 9, 2026, 5:16 AM
https://vuldb.com/vuln/369303vuldb.com
No excerpt available.
Exploitvuldb.comJun 9, 2026, 5:16 AM
https://vuldb.com/submit/835623vuldb.com
No excerpt available.
Exploitvuldb.comJun 9, 2026, 5:16 AM
https://vuldb.com/cve/CVE-2026-11623vuldb.com
No excerpt available.
Exploitvuldb.comJun 9, 2026, 5:16 AM
https://github.com/tmux/tmux/releases/tag/3.7-rcgithub.com
No excerpt available.
Exploitgithub.comJun 9, 2026, 5:16 AM
https://github.com/tmux/tmux/commit/fc6d94a9f8a593bd8b7031650802084385d4ee03github.com
No excerpt available.
Exploitgithub.comJun 9, 2026, 5:16 AM
https://github.com/tmux/tmux/github.com
No excerpt available.
Exploitgithub.comJun 9, 2026, 5:16 AM
https://gist.github.com/XlabAITeam/f0d9952595f795129a3258ba73bbc3cbgist.github.com
No excerpt available.
Exploitgist.github.comJun 9, 2026, 5:16 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

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5 mentions

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-11623.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

Product query unavailableNo valid raw CPE 2.3 product record is available for this CVE, so no product-level Shodan query is shown.

Exact CVE query

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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2026-11623Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Unavailable

Published

Jun 9, 2026

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS 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/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

CWE IDs

Vendor classifications

Unavailable

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Local. The attacker needs local access to the vulnerable system.
Attack Complexity (AC): High. Successful exploitation depends on conditions outside the attacker's control.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): Low. There is a limited impact to this security property.
Vulnerable System Integrity (VI): Low. There is a limited impact to this security property.
Vulnerable System Availability (VA): Low. There is a limited impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses