CVE-2026-120200 (CVSS 5.4)

Description

Nexterm through 1.2.2-BETA contains a missing authorization vulnerability that allows authenticated users to hibernate, resume, or terminate other users' remote sessions via session lifecycle routes. Attackers who obtain a session ID can call the hibernate, resume, or DELETE connection endpoints to disrupt live SSH, RDP, VNC, or SFTP sessions.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Weakness Type (CWE)

CWE-639 CWE-639

References

Other References

https://github.com/gnmyt/Nexterm https://github.com/gnmyt/Nexterm/blob/v1.2.2-BETA/server/routes/serverSession.js#L87 https://github.com/gnmyt/Nexterm/commit/00fdb03eea35adb3dee8169469e897b3c8f30657 https://github.com/gnmyt/Nexterm/issues/1944 https://github.com/gnmyt/Nexterm/pull/1950 https://www.vulncheck.com/advisories/nexterm-through-1.2.2-beta-missing-authorization-in-server-session-lifecycle-routes

Frequently Asked Questions

What is CVE-2026-120200? +

Nexterm through 1.2.2-BETA contains a missing authorization vulnerability that allows authenticated users to hibernate, resume, or terminate other users' remote sessions via session lifecycle routes. Attackers who obtain a session ID can call the hibernate, resume, or DELETE connection endpoints to disrupt live SSH, RDP, VNC, or SFTP sessions. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-120200? +

CVE-2026-120200 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-120200? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-120200