ClosedPatched

Microsoft Windows: Search Remote Code Execution (CVE-2023-36884)

Microsoft Windows

Microsoft Windows Search contains an unspecified vulnerability that could allow an attacker to evade Mark of the Web (MOTW) defenses via a specially crafted malicious file, leading to remote code execution. Added to CISA KEV on 2023-07-17. CISA lists known use in ransomware campaigns.

Why this severity: CVSS 7.5 (NVD), actively exploited (CISA KEV), known ransomware use

Started: Jul 17, 2023
Closed: Jul 17, 2023
CVE: CVE-2023-36884

Follow this incident

Updated Jul 17, 2023

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Jul 17, 2023
CISA added CVE-2023-36884 to the KEV catalog (due 2023-08-29).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).

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