Vulnerability

CVE-2022-41091

Medium· 5.4KEVCVSS5.4EPSS6%

.rules3/5

Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability

Microsoft Windows Mark of the Web (MOTW) contains a security feature bypass vulnerability resulting in a limited loss of integrity and availability of security features.

Threat signal

65/100

Elevated

Severity

medium

CVSS

5.4

EPSS

Active

KEV

CISA KEV — actively exploited

Ransomware: Known1282d overdue

AffectedMicrosoft — Windows

Added to KEV

2022-11-08

Federal patch due (BOD 22-01)

2022-12-09

Required action (CISA verbatim)

Apply updates per vendor instructions.

Vendor advisory + references

CISA description: “Microsoft Windows Mark of the Web (MOTW) contains a security feature bypass vulnerability resulting in a limited loss of integrity and availability of security features.”

CVSS

v3.1Open in FIRST calculator →

5.4/ 10MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionRequiredRequires user action (click, file open, etc).
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactNoneNo confidentiality impact.
Integrity ImpactLowSome data modification; attacker doesn't fully control extent.
Availability ImpactLowReduced performance / interruptions.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

6.34%

probability of exploitation in next 30 days

p91

higher than 91% of all CVEs

3-day trend↑ 0pp

Mid-pack — moderate exploitation likelihood.

Vendor VEX

No VEX statements published for CVE-2022-41091. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAttend

Active exploitation with limited impact — coordinate patching

exploitation: active
automatable: no
impact: partial
mission: support

Lifecycle

2022-11-08Added to CISA KEVransomware: Known
2022-11-08Published
2022-12-09Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.