CVE-2022-41049

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS 5.4 MEDIUMEPSS 2.5%● KEV

Vexday Risk Score

43Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 5.4EPSS 2.5%KEV simPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

09 Nov 2022Published on NVD

14 Nov 2022Active exploitation (CISA KEV)

Weaponization speed

5 daysto active exploitation (KEV)

Weaponized quickly — attackers prioritized this vulnerability. Patch urgently.

Recommendation: Plan a near-term fix — a public PoC already exists.

In short

A security feature in Windows called Mark of the Web, which warns users about potentially dangerous downloaded files, can be bypassed. This allows attackers to distribute malicious files without triggering safety warnings.

Technical detail

This vulnerability allows attackers to bypass the Mark of the Web (MOTW) security feature by manipulating file attributes or using specific file handling techniques, enabling distribution of untrusted content without triggering Windows security warnings. Exploitation requires user interaction (file download and execution) but significantly reduces warning visibility.

Summary generated and translated by AI from the official description.

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:F/RL:O/RC:C

Affected products

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41049 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41049