CVE-2022-29800

Windows Defender For Endpoint vulnerability

CVSS

4.7

EPSS

6.7%

EPSS pct

93th

Exploited

No known

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.

Affected vendor

Microsoft

Affected product

Windows Defender For Endpoint

CVSS vector

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

Weakness type (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

Published

2022-09-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, high attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 6.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2022-29800

Confirm whether Microsoft Windows Defender For Endpoint is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-29800.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-29800

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-29800 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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