ThinVNC version 1.0b1 allows an unauthenticated user to bypass the authentication process…
Priority MEDIUM 56Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.10989 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | ThinVNC | 1.0b1 | — | No fix listed | CNA |
- ThinVNC Vendor— Affected 1.0b1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-25226
- 2026-10-03 Alias added: GHSA-mvv3-c6h9-hj2q
References
More Cybelsoft Thinvnc vulnerabilities
- TI-2019-13184 ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-25226 · CVE Program
- CVE-2022-25226 · NVD
- FIRST EPSS
- GHSA-mvv3-c6h9-hj2q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences