CVE-2022-27502

HIGH

RealVNC VNC Server 5.1.0-6.9.0 - Local Privilege Escalation via Installer Repair Operation

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2022-27502. PoCs published by alirezac0.

AI-analyzed exploit summary This repository contains a DLL hijacking exploit for CVE-2022-27502, targeting RealVNC Server up to version 6.9.0. The exploit involves placing a malicious DLL in %TEMP% and triggering a repair operation to execute arbitrary commands (e.g., `whoami`).

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.

Exploits (1)

nomisec WORKING POC 27 stars

by alirezac0 · poc

https://github.com/alirezac0/CVE-2022-27502

View Code ZIP pw:eip

This repository contains a DLL hijacking exploit for CVE-2022-27502, targeting RealVNC Server up to version 6.9.0. The exploit involves placing a malicious DLL in %TEMP% and triggering a repair operation to execute arbitrary commands (e.g., `whoami`).

Classification

Working Poc 95%

Attack Type

Lpe

Complexity

Moderate

Reliability

Reliable

Target: RealVNC Server <= 6.9.0

Auth required

Prerequisites: Access to the target system to place the DLL in %TEMP% · Ability to trigger a repair of RealVNC Server

MITRE ATT&CK

T1574.001 - DLL T1059 - Command and Scripting Interpreter

mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Core References

Vendor Advisory x_refsource_misc

https://realvnc.com

Vendor Advisory x_refsource_misc

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

Scores

CVSS v3 7.8

EPSS 0.0066

EPSS Percentile 47.8%

Attack Vector LOCAL

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

Details

Status published

Products (1)

realvnc/vnc_server 5.1.0 - 6.9.1

Published Jun 10, 2022

Tracked Since Feb 18, 2026