CVE-2022-25226

10.0 criticalEPSS 11%

Critical (10.0) in cybelsoft thinvnc. EPSS 11% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

10.0 critical

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

EPSS: 11% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
Published: 2022-04-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cybelsoft:thinvnc

References

https://fluidattacks.com/advisories/sinatra/
https://fluidattacks.com/advisories/sinatra/

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