Patch tracker / CVE reference / CVE-2025-26633
CVE-2025-26633
CVE-2025-26633 is a high severity Microsoft vulnerability with a CVSS score of 7.0. It is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it in the wild, including in ransomware campaigns, which makes it a fix-first item. Microsoft has shipped the fix: deploy one of the 16 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Listed in the CISA Known Exploited Vulnerabilities catalog, confirmed exploited in the wild. EPSS exploit probability 59%. CVSS 7.0 (High). Linked to ransomware activity.
This CVE is among the top half of tracked Microsoft CVEs by EPSS exploit probability, and one of 7 actively-exploited CVEs in March 2025.
Ransomware operators exploited this Microsoft Management Console security feature bypass, KEV-listed on 2025-03-11 with a 59% EPSS score. The bypass lets crafted console files evade a protection that would otherwise warn users, and the ransomware association means it ships inside full intrusion chains, not just proofs of concept.
Do this: Deploy the March 2025 updates and block untrusted .msc files at email and proxy gateways.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-26633
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-26633
Treat as urgent: it is being exploited in the wild (CISA KEV), so patch ahead of items that are not. In Intune or Defender, confirm whether the fixing updates KB5053594, KB5053596, KB5053598, KB5053599, KB5053602, KB5053603, KB5053606, KB5053618, KB5053620, KB5053627, KB5053636, KB5053638, KB5053886, KB5053887, KB5053888, KB5053995 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.
Apply the Microsoft security updates below to fix CVE-2025-26633. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.
Scope and sources
- Affected products
- Fixed by the same updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.