Live › vulnerability › CVE-2025-26633
Go to dashboardMicrosoft Windows Management Console (MMC) fails to properly neutralize input, letting a local attacker bypass a Windows security feature. CISA lists it as actively exploited, with ransomware use noted in the catalog.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft Windows | vendor | – | – |
| microsoft windows 10 1507 | vendor | < 10.0.10240.20947 | 10.0.10240.20947 |
| microsoft windows 10 1607 | vendor | < 10.0.14393.7876 | 10.0.14393.7876 |
| microsoft windows 10 1809 | vendor | < 10.0.17763.7009 | 10.0.17763.7009 |
| microsoft windows 10 21h2 | vendor | < 10.0.19044.5608 | 10.0.19044.5608 |
| microsoft windows 10 22h2 | vendor | < 10.0.19045.5608 | 10.0.19045.5608 |
| microsoft windows 11 22h2 | vendor | < 10.0.22621.5039 | 10.0.22621.5039 |
| microsoft windows 11 23h2 | vendor | < 10.0.22631.5039 | 10.0.22631.5039 |
| microsoft windows 11 24h2 | vendor | < 10.0.26100.3403 | 10.0.26100.3403 |
| microsoft windows server 2008 | vendor | – | – |
| microsoft windows server 2008 | vendor | = r2 | – |
| microsoft windows server 2012 | vendor | – | – |
| microsoft windows server 2012 | vendor | = r2 | – |
| microsoft windows server 2016 | vendor | < 10.0.14393.7876 | 10.0.14393.7876 |
| microsoft windows server 2019 | vendor | < 10.0.17763.7009 | 10.0.17763.7009 |
| microsoft windows server 2022 | vendor | < 10.0.20348.3270 | 10.0.20348.3270 |
| microsoft windows server 2022 23h2 | vendor | < 10.0.25398.1486 | 10.0.25398.1486 |
| microsoft windows server 2025 | vendor | < 10.0.26100.3403 | 10.0.26100.3403 |
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Microsoft Windows Management Console (MMC) contains an improper neutralization vulnerability that allows an unauthorized attacker to bypass a security feature locally.
CISA 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.
This page as .md · .json · in your agent: get_signal("CVE-2025-26633")
CISA KEV catalog, Creative Commons 0 · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.