July 17, 2023 · Applied Cybernetics Group
CVE-2023-36884 — Microsoft Windows
known ransomware use
Microsoft Windows Search Remote Code Execution Vulnerability
- Added to KEV
2023-07-17- Federal due date
2023-08-29- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 99.9th percentile (score 0.990, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- ATT&CK
- T1005 , T1070.001 , T1204.002 , T1486 , T1489 , T1490 , T1553.005 , T1566 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2023-36884
CISA short description
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.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.