Microsoft Windows Management Console (MMC) Improper Neutralization Vulnerability
Microsoft — Windows 10 Version 1507
Improper neutralization in Microsoft Management Console allows an unauthorized attacker to bypass a security feature locally.
7.0
30.4%
Vector breakdown
- Attack vector
- Local
- Attack complexity
- High
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- Mar 11, 2025
- Modified
- Aug 5, 2026
- Added to KEV
- Mar 11, 2025
- Federal patch due
- Apr 1, 2025
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.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
2 foundWeaponization
Public repositories whose name or description references CVE-2025-26633, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
- mbanyamer/MSC-EvilTwin-Local-Privilege-Escalation★ 4
CVE-2025-26633 (CVSS 7.8) – Zero-day MMC .msc EvilTwin LPE actively exploited by Water Gamayun APT. PoC creates local admin via malicious MSC file on unpatched Windows 10/11/Server. Patched March 2025. Authorized testing only.
updated May 20, 2026
- sandsoncosta/CVE-2025-26633★ 2
updated Jan 19, 2026
References
Frequently asked questions
What is CVE-2025-26633?
Improper neutralization in Microsoft Management Console allows an unauthorized attacker to bypass a security feature locally.
How severe is CVE-2025-26633?
CVE-2025-26633 has a CVSS base score of 7.0 out of 10 (CVSS 3.1).
Is CVE-2025-26633 actively exploited in the wild?
Yes. CVE-2025-26633 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Mar 11, 2025, meaning CISA has confirmed evidence of active exploitation. It is also flagged as used in ransomware campaigns.
What is the EPSS score for CVE-2025-26633?
30.4% - meaning FIRST.org's EPSS model estimates a 30.4% probability this vulnerability will be exploited in the wild within 30 days (98% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2025-26633?
We found 2 public GitHub repositories referencing CVE-2025-26633, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2025-26633?
CVE-2025-26633 is classified under CWE-707 (CWE-707: Improper Neutralization).
Cross-checked against
Impactr finds and proves whether CVE-2025-26633 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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