CVE-2026-69970: Kernel Streaming Service Driver Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
Other sources
Kernel Streaming Service Driver 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 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running the listed Microsoft Windows client or server releases are in scope. Exploitation is local, so exposure is primarily to machines where an attacker can already authenticate and run code.
What access does an attacker need to exploit it?
The attacker must be authorized and have local access. No user interaction is required, but the attack complexity is rated high.
What is the likely impact of successful exploitation?
Successful exploitation can allow elevation of privilege. The provided metrics indicate high impact to confidentiality, integrity, and availability.