How severe is CVE-2022-29800?

CVE-2022-29800 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2022-29800 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29800?

CVE-2022-29800 affects Microsoft Windows Defender For Endpoint. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-29800?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-29800 published?

CVE-2022-29800 was published on 2022-09-21 and last updated on 2026-06-17.

CVE-2022-29800

CVE-2022-29800 is a medium-severity vulnerability in Microsoft Windows Defender For Endpoint with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-367
Affected product: Microsoft Windows Defender For Endpoint
Published: 2022-09-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-29800?: 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.
How severe is CVE-2022-29800?: CVE-2022-29800 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2022-29800 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29800?: CVE-2022-29800 affects Microsoft Windows Defender For Endpoint. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-29800?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-29800 published?: CVE-2022-29800 was published on 2022-09-21 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:microsoft:windows_defender_for_endpoint:-:*:*:*:*:linux:*:*

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