Security readout for executives and security teams
Plain-English summary
A flaw in Microsoft Management Console can let an attacker bypass a Windows security protection and potentially cause serious confidentiality, integrity, and availability impacts. Exploitation requires local execution and user interaction, but CISA lists the vulnerability as known exploited, making remediation urgent.
Executive priority
Treat this as an urgent patching issue because exploitation is confirmed through CISA KEV and potential impact is high. Prioritize exposed user endpoints and high-value servers, track remediation to completion, and escalate systems that cannot receive the applicable Microsoft update.
Technical view
CVE-2025-26633 is a CWE-707 improper-neutralization flaw in Microsoft Management Console. Its CVSS 3.1 score is 7.0: local access, high complexity, no privileges, and user interaction required, with potentially high confidentiality, integrity, and availability impact. The supplied affected list spans multiple Windows 10, Windows 11, and Windows Server releases.
Likely exposure
Exposure exists on listed Windows client and server versions where Microsoft’s applicable security update is absent. Prioritize user workstations and administrative or sensitive servers. The bundle does not provide affected file versions, KB identifiers, or evidence sufficient to determine exposure solely from operating-system build numbers.
Exploitation context
CISA’s Known Exploited Vulnerabilities listing supports active exploitation in the wild. The supplied evidence does not identify threat actors, campaigns, exploitation volume, indicators of compromise, or the precise delivery method. The CVSS vector indicates local attack, high complexity, and required user interaction rather than unauthenticated remote exploitation.
Researcher notes
The evidence supports a local security-feature bypass with AV:L/AC:H/PR:N/UI:R and high impact across all three impact dimensions. CWE-707 describes improper neutralization. Public details in the supplied bundle are insufficient to confirm the bypassed control, vulnerable component versions, exploitation chain, telemetry signatures, or patch KB mappings.
Mitigation direction
- Apply the applicable Microsoft security update identified in the vendor advisory.
- Accelerate remediation on privileged workstations, administrative servers, and other high-value Windows systems.
- Use Microsoft guidance to address legacy Windows versions requiring extended or specialized update channels.
- Until patched, reduce exposure to untrusted files and unexpected content that could invoke Management Console behavior.
Validation and detection
- Inventory listed Windows editions and builds, then identify systems missing the applicable Microsoft update.
- Confirm update installation and successful reboot where Microsoft’s deployment guidance requires one.
- Review endpoint telemetry for unusual Microsoft Management Console activity; the supplied sources provide no specific indicators.
- Re-scan remediated systems and document exceptions, unsupported assets, and update failures.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-707: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-26633 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C15.9microsoftVulnerability scoring details
Base CVSS 3.1 score
7HighVector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- ADP timelineCISA-ADP
CVE-2025-26633 added to CISA KEV
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2025-03-11T00:00:00.000Z: CVE-2025-26633 added to CISA KEV
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft Management Console Security Feature Bypass VulnerabilityCVE reference, microsoft · vendor-advisory, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-26633CVE reference, CISA-ADP · government-resource
- https://www.vicarius.io/vsociety/posts/cve-2025-26633-security-feature-bypass-in-microsoft-management-console-detection-scriptCVE reference, CVE
- https://www.vicarius.io/vsociety/posts/cve-2025-26633-security-feature-bypass-in-microsoft-management-console-mitigation-scriptCVE reference, CVE
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization
Improper Neutralization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.