CVE-2022-27502

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-10 · updated 2026-06-17

Description

RealVNC VNC Server 6.9.0 through 5.1.0 for Windows allows local privilege escalation because an installer repair operation executes %TEMP% files as SYSTEM.

Affected products

Realvnc Vnc Server: from 5.1.0 before 6.9.1 — fixed in 6.9.1

How to fix

Upgrade to a fixed version: Realvnc Vnc Server 6.9.1. Check the vendor advisory for mitigations.

References

https://help.realvnc.com/hc/en-us/articles/360002478311-Are-there-any-known-security-vulnerabilities-#cve-2008-4770-moderate-%E2%80%94-only-affects-vnc-viewer--0-1
https://realvnc.com
https://help.realvnc.com/hc/en-us/articles/360002478311-Are-there-any-known-security-vulnerabilities-#cve-2008-4770-moderate-%E2%80%94-only-affects-vnc-viewer--0-1
https://realvnc.com

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