CVE-2026-45595

mediumCVSS 5.4covered by 1 sourcefirst seen 2026-06-09

Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.

CSIRTS triage

What: Protection mechanism failure allows an unauthorized attacker to bypass a security feature.
Who is affected: Users of Windows with the Mark of the Web feature.
Urgency: Remediation is important due to a medium severity rating (CVSS 5.4) and potential security bypass.
Action: Apply the latest security patch for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.

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