CVE-2026-59119: CWE-276: Incorrect Default Permissions in Microsoft PowerShell 7.4
Incorrect default permissions in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves incorrect default permissions in Microsoft PowerShell version 7.4.0 that enable an authorized local attacker to elevate their privileges. The flaw is identified as CWE-276 (Incorrect Default Permissions). The CVSS 3.1 base score is 7.3, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, and the vendor advisory is available at the Microsoft Security Response Center.
Potential Impact
An authorized local attacker can exploit the incorrect default permissions to elevate their privileges, potentially gaining higher access rights than intended. This can lead to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided by Microsoft for PowerShell 7.4.0 as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59119. No additional mitigation steps are required beyond applying the official update.
CVE-2026-59119: CWE-276: Incorrect Default Permissions in Microsoft PowerShell 7.4
Description
Incorrect default permissions in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.3high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves incorrect default permissions in Microsoft PowerShell version 7.4.0 that enable an authorized local attacker to elevate their privileges. The flaw is identified as CWE-276 (Incorrect Default Permissions). The CVSS 3.1 base score is 7.3, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, and the vendor advisory is available at the Microsoft Security Response Center.
Potential Impact
An authorized local attacker can exploit the incorrect default permissions to elevate their privileges, potentially gaining higher access rights than intended. This can lead to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided by Microsoft for PowerShell 7.4.0 as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59119. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-02T16:05:24.069Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59119","vendor":"Microsoft"}]
Threat ID: 6a7b57fdbf8831d53915573d
Added to database: 08/11/2026, 17:12:29 UTC
Last enriched: 08/11/2026, 23:11:34 UTC
Last updated: 08/12/2026, 00:16:29 UTC
Views: 4
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