CVE-2026-70578: Windows Credential Guard Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Credential Guard allows an authorized attacker to elevate privileges locally.
Other sources
Windows Credential Guard Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7725Patch KB5122878
Event History
Frequently Asked Questions
Does exploitation require prior access or user interaction?
An attacker must already be authorized on the affected system with low privileges and must execute locally. No user interaction is required.
Can this be exploited remotely?
The attack vector is local, so the provided data does not indicate remote network exploitation.
Which systems should be included in remediation scope?
Scope Microsoft Windows 10, Microsoft Windows 11, and Microsoft Windows Credential Guard deployments. The provided data does not specify affected version ranges or configuration conditions.