CVE-2026-23670: CWE-822: Untrusted Pointer Dereference in Microsoft Windows 10 Version 1607
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-23670) is caused by an untrusted pointer dereference within the Windows Virtualization-Based Security (VBS) Enclave in Windows 10 Version 1607 (build 10.0.14393.0). It enables an attacker with authorized local access and high privileges to bypass a security feature. The CVSS 3.1 vector indicates that the attack requires local access, high attack complexity, and high privileges, but no user interaction. The impact includes high confidentiality and integrity impact but no availability impact. Microsoft has released an official fix for this vulnerability.
Potential Impact
An authorized local attacker with high privileges can exploit this vulnerability to bypass security features in the VBS Enclave, potentially compromising system confidentiality and integrity. There is no impact on system availability. No known exploits in the wild have been reported.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23670 to remediate this vulnerability.
CVE-2026-23670: CWE-822: Untrusted Pointer Dereference in Microsoft Windows 10 Version 1607
Description
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
CVSS v3.1
Score 5.7medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-23670) is caused by an untrusted pointer dereference within the Windows Virtualization-Based Security (VBS) Enclave in Windows 10 Version 1607 (build 10.0.14393.0). It enables an attacker with authorized local access and high privileges to bypass a security feature. The CVSS 3.1 vector indicates that the attack requires local access, high attack complexity, and high privileges, but no user interaction. The impact includes high confidentiality and integrity impact but no availability impact. Microsoft has released an official fix for this vulnerability.
Potential Impact
An authorized local attacker with high privileges can exploit this vulnerability to bypass security features in the VBS Enclave, potentially compromising system confidentiality and integrity. There is no impact on system availability. No known exploits in the wild have been reported.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23670 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-14T16:59:33.465Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23670","vendor":"Microsoft"}]
Threat ID: 69de7a1482d89c981fd6a5f5
Added to database: 04/14/2026, 17:32:04 UTC
Last enriched: 06/19/2026, 16:57:27 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 101
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