CVE-2023-21529
KEV · ransomware High · CVSS 8.8- CVSS
- 8.8
- nvd
- EPSS
- 62.1%
- 99th pct
- KEV
- Listed
- ransomware
- Class
- other
- CWE-502
Description
Microsoft Exchange Server Remote Code Execution Vulnerability
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21529
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21529
- https://www.microsoft.com/en-us/security/blog/2026/04/06/storm-1175-focuses-gaze-on-vulnerable-web-facing-assets-in-high-tempo-medusa-ransomware-operations/
Status: profiled · ingested 2026-08-19T18:00:49.000Z