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CVE-2026-45743 Termix-SSH CVE debrief

CVE-2026-45743 is a high-severity vulnerability in Termix, a web-based server management platform. The issue affects 16 file-manager endpoints in Termix versions prior to 2.3.2. These endpoints do not properly verify that the requesting user owns the SSH session identified by `sessionId`. This weakness allows an authenticated attacker who knows or guesses another user's active `sessionId` to perform various unauthorized actions on the victim's connected SSH host, including reading, writing, deleting, downloading, and executing files.

Vendor
Termix-SSH
Product
Termix
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-08
Advisory published
2026-06-05
Advisory updated
2026-06-08

Who should care

Administrators and users of Termix, especially those with SSH terminal, tunneling, and file editing capabilities, should be aware of this vulnerability. Anyone using Termix versions earlier than 2.3.2 is at risk.

Technical summary

The vulnerability has a CVSS score of 8.1 and is classified as HIGH severity. It exists in the file-manager endpoints of Termix. The Common Weakness Enumeration (CWE) associated with this vulnerability is CWE-639.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade Termix to version 2.3.2 or later.
  • Restrict access to sensitive file-manager endpoints.
  • Implement additional authentication checks for SSH sessions.

Evidence notes

Evidence from the NVD and CVE.org confirms the vulnerability details and the affected versions of Termix.

Official resources

CVE-2026-45743 was published on 2026-06-05T18:17:28.793Z and modified on 2026-06-08T17:16:44.553Z.