CVE-2026-88157
8.8HighPublished 13 Oct 2026 · NVD status: Undergoing Analysis · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Impact
- Full C/I/A compromise
- Weakness
- CWE-122
Impact
Remote attackers can execute arbitrary code over the network, but it requires user interaction. They do not need prior authentication to target the system.
Root cause
A heap-based buffer overflow flaw exists in OpenSSH for Windows.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Fix & remediation
Apply the update from Microsoft's security update guide once identified; if patching must wait, stop and disable the OpenSSH SSH Server service or block port 22 at the firewall.
$ Stop-Service sshd; Set-Service -Name sshd -StartupType DisabledAI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.