March 11, 2025 · Applied Cybernetics Group
CVE-2025-26633 — Microsoft Windows
known ransomware use
Microsoft Windows Management Console (MMC) Improper Neutralization Vulnerability
- Added to KEV
2025-03-11- Federal due date
2025-04-01- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 98.1th percentile (score 0.304, as of
2026-09-16) - NVD CVSS v3.1
- 7 (HIGH)
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2025-26633
CISA short description
Microsoft Windows Management Console (MMC) contains an improper neutralization vulnerability that allows an unauthorized attacker to bypass a security feature locally.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
NVD description
Improper neutralization in Microsoft Management Console allows an unauthorized attacker to bypass a security feature locally.