Improper neutralization in Microsoft Management Console allows an unauthorized attacker to bypass a security feature locally.
Published 2025-03-11 16:59:25
Updated 2025-04-17 18:29:29
View at NVD,   CVE.org

Products affected by CVE-2025-26633

CVE-2025-26633 is in the CISA Known Exploited Vulnerabilities Catalog

This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
Microsoft Windows Management Console (MMC) Improper Neutralization Vulnerability
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.
CISA description:
Microsoft Windows Management Console (MMC) contains an improper neutralization vulnerability that allows an unauthorized attacker to bypass a security feature locally.
Notes:
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-26633 ; https://nvd.nist.gov/vuln/detail/CVE-2025-26633
Added on 2025-03-11 Action due date 2025-04-01

Exploit prediction scoring system (EPSS) score for CVE-2025-26633

1.56%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2025-26633

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/...
N/A
N/A
Microsoft Corporation 2025-03-11
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
1.0
5.9
Microsoft Corporation 2025-03-11
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/...
N/A
N/A
MS-CVE-2025-26633 2025-03-11

CWE ids for CVE-2025-26633

  • The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.
    Assigned by: secure@microsoft.com (Secondary)

References for CVE-2025-26633

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