CVE-2022-29800

MEDIUM

Windows Defender for Endpoint - Time-of-check Time-of-use Race Condition

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2022-29800. PoCs published by ngtuonghung.

AI-analyzed exploit summary This exploit leverages CVE-2022-29800 (a symlink race condition in networkd-dispatcher) to achieve local privilege escalation by hijacking the D-Bus interface and manipulating symlinks to execute arbitrary payloads as root.

Description

A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd-dispatcher. This flaw exists because there is a certain time between the scripts being discovered and them being run. An attacker can abuse this vulnerability to replace scripts that networkd-dispatcher believes to be owned by root with ones that are not.

Exploits (1)

nomisec WORKING POC

by ngtuonghung · poc

https://github.com/ngtuonghung/nimbuspwn-CVE-2022-29800-CVE-2022-29799

View Code ZIP pw:eip

This exploit leverages CVE-2022-29800 (a symlink race condition in networkd-dispatcher) to achieve local privilege escalation by hijacking the D-Bus interface and manipulating symlinks to execute arbitrary payloads as root.

Classification

Working Poc 95%

Attack Type

Lpe

Complexity

Moderate

Reliability

Racy

Target: networkd-dispatcher (versions prior to fix for CVE-2022-29800)

Auth required

Prerequisites: Local access to the target system · networkd-dispatcher installed and running · D-Bus system bus access

MITRE ATT&CK

T1068 - Exploitation for Privilege Escalation T1548.001 - Setuid and Setgid

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1

Core References

Exploit, Technical Description, Vendor Advisory x_refsource_misc

https://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/

Scores

CVSS v3 4.7

EPSS 0.0646

EPSS Percentile 92.8%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-367

Status published

Products (1)

microsoft/windows_defender_for_endpoint

Published Sep 21, 2022

Tracked Since Feb 18, 2026