Description
ThinVNC version 1.0b1 allows an unauthenticated user to bypass the authentication process via 'http://thin-vnc:8080/cmd?cmd=connect' by obtaining a valid SID without any kind of authentication. It is possible to achieve code execution on the server by sending keyboard or mouse events to the server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | ThinVNC | 1.0b1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
krill-x7/CVE-2022-25226 ★ 1 · Jul 16, 2025
ThinVNC 1.0b1 - Authentication Bypass to RCE
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- ThinVNC - Authentication Bypass http/cves/2022/CVE-2022-25226.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.