CVE-2026-103578: Windows Kernel Elevation of Privilege Vulnerability
Published Oct 13, 2026
·Updated
Untrusted pointer dereference in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.
Other sources
Windows Kernel Elevation of Privilege Vulnerability
— Microsoft
Affected Software
2 affected componentsFixes available
Microsoft Windows 11=26H1
10.0.28000.3231
Microsoft Windows 11=26H1
10.0.28000.3231
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 10.0.28000.3231Patch KB5127646
Event History
Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·07:01 PM
Data Sourced
via MITRE·07:01 PM
DescriptionSeverity
Data Sourced
via NVD·07:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What access does an attacker need to exploit this issue?
The attack vector is physical. The attacker does not need existing privileges or user interaction to exploit the vulnerability.
2
Which systems are identified as affected?
The affected software listed is Microsoft Windows 11.
3
What level of impact could successful exploitation have?
Successful exploitation could allow elevation of privileges and has high assessed impact on confidentiality, integrity, and availability.