Windows Search Remote Code Execution Vulnerability
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Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-07-17), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.
Windows Search Remote Code Execution Vulnerability
July 11, 2023
October 28, 2025
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36884Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36884MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (5 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
MS Office and Windows HTML RCE (CVE-2023-36884) - PoC and exploit
Open source ↗Script to check for CVE-2023-36884 hardening
Open source ↗This is an emergency solution while Microsoft addresses the vulnerability.
Open source ↗The remediation script should set the reg entries described in https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36884 . The detection script checks if they exist. Provided AS-IS without any warrenty.
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-36884
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.
msrc