CVE-2026-70337: CWE-23: Relative Path Traversal in Microsoft PowerShell 7.4
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-70337) is a relative path traversal issue in Microsoft PowerShell Core version 7.4.0. It enables an attacker without privileges to execute arbitrary code remotely by exploiting the path traversal flaw. The CVSS 3.1 score is 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an unauthorized attacker to execute code remotely on affected PowerShell 7.4.0 installations, potentially leading to full compromise of the affected system. The CVSS score of 8.8 reflects high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the patch for PowerShell 7.4.0 as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70337 to remediate this vulnerability.
CVE-2026-70337: CWE-23: Relative Path Traversal in Microsoft PowerShell 7.4
Description
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
pkg:github/powershell/powershellRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-70337) is a relative path traversal issue in Microsoft PowerShell Core version 7.4.0. It enables an attacker without privileges to execute arbitrary code remotely by exploiting the path traversal flaw. The CVSS 3.1 score is 8.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an unauthorized attacker to execute code remotely on affected PowerShell 7.4.0 installations, potentially leading to full compromise of the affected system. The CVSS score of 8.8 reflects high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the patch for PowerShell 7.4.0 as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70337 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-04T00:04:56.036Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70337","vendor":"Microsoft"}]
Threat ID: 6a7b5841bf8831d539156a5b
Added to database: 08/11/2026, 17:13:37 UTC
Last enriched: 08/11/2026, 17:29:55 UTC
Last updated: 08/12/2026, 00:38:39 UTC
Views: 4
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