PatchSiren cyber security CVE debrief

CVE-2026-108130 Microsoft CVE debrief

A heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally. This vulnerability affects multiple versions of Windows 11 and Windows Server 2025. Microsoft has released a patch for this vulnerability. The vulnerability has a high impact on system security, and administrators should prioritize patching. The CVE Program record and NVD vulnerability detail provide additional information on this vulnerability.

Vendor: Microsoft
Product: Windows 11 Version 24H2
CVSS: HIGH 7.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-10-13
Original CVE updated: 2026-10-14
Advisory published: 2026-10-13
Advisory updated: 2026-10-14

Who should care

System administrators and security teams responsible for Windows 11 and Windows Server 2025 systems should assess exposure and apply the patch released by Microsoft.

Why it matters

This vulnerability allows an authorized attacker to elevate privileges locally on affected Windows 11 and Windows Server 2025 systems. System administrators and security teams should assess exposure and apply the patch released by Microsoft.

Privilege escalation may occur on affected systems
Local attackers may exploit this vulnerability
Patching is required to prevent exploitation

Technical summary

A heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally. This vulnerability affects multiple versions of Windows 11 and Windows Server 2025. The vulnerability has a high impact on system security, and administrators should prioritize patching. The CVE Program record and NVD vulnerability detail provide additional information on this vulnerability.

Defensive priority

High

Recommended defensive actions

Apply the patch released by Microsoft
Review and update affected systems
Monitor for potential exploitation attempts

Evidence notes

The CVE Program record and NVD vulnerability detail provide information on this vulnerability. Microsoft has released a patch for this vulnerability. The vulnerability affects multiple versions of Windows 11 and Windows Server 2025. System administrators and security teams should assess exposure and apply the patch released by Microsoft. The vulnerability has a CVSS score of 7.8 and a severity of HIGH.

Sources and references

Verified primary and authoritative sources

CVE-2026-108130 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-108130

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-108130 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-108130

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/108xxx/CVE-2026-108130.json

cve_program_cvelist_v5
Source reference
Unverified legacy reference

URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108130

Supplemental source - vendor-advisory, patch

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.