Missing authorization in Nexterm lets users disrupt remote sessions
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
Nexterm from 1.0.6-OPEN-PREVIEW through 1.2.2-BETA is affected. Its session lifecycle routes do not enforce authorization, a flaw tracked as CWE-639. An authenticated user who obtains a session ID can hibernate, resume, or terminate other users' SSH, RDP, VNC, or SFTP sessions.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Nexterm.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Timeline
- 2026-10-31 Threatist record created from CVE-2026-120200
- 2026-10-31 Alias added: GHSA-qprx-3355-vjrx
- 2026-11-02 CISA SSVC decision points changed
References
Sources
- CVE-2026-120200 · CVE Program
- CVE-2026-120200 · NVD
- FIRST EPSS
- GHSA-qprx-3355-vjrx · GitHub Advisory Database · CC BY 4.0
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