CVE-2026-50298: Windows Spaceport.sys Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Spaceport.sys allows an unauthorized attacker to elevate privileges with a physical attack.
Other sources
Windows Spaceport.sys 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 10.0.26100.8875Patch KB5101650 - Upgrade
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Fixed in 6.3.9600.23291Patch KB5099444 - Upgrade
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Fixed in 10.0.14393.9339Patch KB5099535 - Upgrade
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Fixed in 6.2.9200.26226Patch KB5099445 - Upgrade
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Fixed in 10.0.28000.2525Patch KB5101649 - Upgrade
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Fixed in 10.0.26100.33158Patch KB5099536 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8875Patch KB5101650 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5386Patch KB5099540 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7548Patch KB5099539 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9020Patch KB5099538
Event History
Frequently Asked Questions
What is the severity of CVE-2026-50298?
CVE-2026-50298 has a severity rating of medium with a score of 6.8.
How do I fix CVE-2026-50298?
The recommended solution for CVE-2026-50298 is to apply the available security patch provided by Microsoft.
What kind of vulnerability is CVE-2026-50298?
CVE-2026-50298 is classified as an elevation of privilege vulnerability due to an integer overflow in Windows Spaceport.sys.
Which systems are affected by CVE-2026-50298?
CVE-2026-50298 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server including Server 2012, 2016, 2019, and 2025.
What does CVE-2026-50298 allow an attacker to do?
CVE-2026-50298 allows an unauthorized attacker to elevate privileges through a physical attack.