CVE-2026-83754
HighCVSS 7.5Summary
Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
Risk Assessment
An unauthorized attacker could remotely execute code, potentially leading to full system compromise.
Recommendation
Update OpenSSH for Windows to the latest version and restrict network access to the service.
Other vulnerabilities in OpenSSH for Windows
See all- CVE-2026-88157High
Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
- CVE-2026-83871High
Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.
- CVE-2026-83769High
A use after free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.
- CVE-2026-70163High
A vulnerability in OpenSSH for Windows involves allocation of resources without limits or throttling. An unauthenticated attacker can cause a denial of service over the network.
- CVE-2026-97816Critical
OpenSSH for Windows is affected by a use after free vulnerability. This allows an unauthorized attacker to execute code over a network.
- CVE-2026-69397High
A use-after-free vulnerability in OpenSSH for Windows allows an unauthorized attacker to execute code over a network. The issue stems from using freed memory.
Original NVD description (English source)
Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS