CVE-2022-29800

A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd...

4.7 MediumPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

7.16%Up 6.3 points since Sep 22, 2022

What each source reports

NVD Score used 4.7

Record: CVE-2022-29800
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-367
Updated: 2026-11-02

CVE List 4.7

Record: CVE-2022-29800
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-367
Updated: 2026-11-02

EUVDEUVD-2022-34121 4.7

Record: EUVD-2022-34121
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-37cj-9g83-7692 4.7

A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd...

Record: GHSA-37cj-9g83-7692
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-367
Updated: 2026-11-02

OSV 4.7

Record: CVE-2022-29800
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-29800 4.7

Record: DEBIAN-CVE-2022-29800
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-03

OSVUBUNTU-CVE-2022-29800 4.7

Record: UBUNTU-CVE-2022-29800
CVSS 3.1: 4.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVUSN-5395-1 No score

networkd-dispatcher vulnerabilities

It was discovered that networkd-dispatcher incorrectly handled internal scripts. A local attacker could possibly use this issue to cause a race condition, escalate privileges and execute arbitrary code. (CVE-2022-29799, CVE-2022-29800)

Record: USN-5395-1
Updated: 2026-11-02

Affected products

microsoft windows defender for endpoint

Affected packages

Affected packages
Package	Affected	Fixed
`networkd-dispatcher` Debian:12	before 2.2.3-1	2.2.3-1
`networkd-dispatcher` Debian:13	before 2.2.3-1	2.2.3-1
`networkd-dispatcher` Debian:14	before 2.2.3-1	2.2.3-1
`networkd-dispatcher` Ubuntu:18.04:LTS	before 1.7-0ubuntu3.4, plus listed versions 1.7-0ubuntu11.7-0ubuntu21.7-0ubuntu31.7-0ubuntu3.21.7-0ubuntu3.3	1.7-0ubuntu3.4
`networkd-dispatcher` Ubuntu:20.04:LTS	before 2.1-2~ubuntu20.04.2, plus listed versions 2.0.1-12.1-2~ubuntu20.04.1	2.1-2~ubuntu20.04.2
`networkd-dispatcher` Ubuntu:22.04:LTS	before 2.1-2ubuntu0.22.04.1, plus listed versions 2.1-2	2.1-2ubuntu0.22.04.1
`networkd-dispatcher` Ubuntu:18.04:LTS From an advisory covering 2 CVEs	before 1.7-0ubuntu3.4, plus listed versions 1.7-0ubuntu11.7-0ubuntu21.7-0ubuntu31.7-0ubuntu3.21.7-0ubuntu3.3	1.7-0ubuntu3.4
`networkd-dispatcher` Ubuntu:20.04:LTS From an advisory covering 2 CVEs	before 2.1-2~ubuntu20.04.2, plus listed versions 2.0.1-12.1-2~ubuntu20.04.1	2.1-2~ubuntu20.04.2
`networkd-dispatcher` Ubuntu:22.04:LTS From an advisory covering 2 CVEs	before 2.1-2ubuntu0.22.04.1, plus listed versions 2.1-2	2.1-2ubuntu0.22.04.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	ngtuonghung/nimbuspwn-CVE-2022-29800-CVE-2022-29799	2025-11-09

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-29800 is a medium vulnerability (CVSS 4.7) in Microsoft Windows Defender For Endpoint, published April 27, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 7.16%, the 94th percentile. Fixed in networkd-dispatcher 2.2.3-1.