CVE-2026-97816: Microsoft OpenSSH for Windows Remote Code Execution Vulnerability
Microsoft OpenSSH for Windows Remote Code Execution Vulnerability
Other sources
Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
— 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 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
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 10.0.20348.5761Patch KB5126655 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The vulnerability is exploitable remotely over a network and does not require attacker privileges or user interaction. It allows an unauthorized attacker to execute code.
Which systems should be prioritized for triage?
Prioritize systems running Microsoft OpenSSH for Windows, including the listed Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, and Windows Server 2025 platforms. Systems reachable over the network warrant particular attention.
What security impact could successful exploitation have?
Successful exploitation can result in remote code execution. The supplied severity metrics indicate high impact to confidentiality, integrity, and availability.