Use-after-free in OpenSSH - CVE-2026-60002
Published: July 15, 2026
Vulnerability identifier: #VU137704
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-60002
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenSSH
Affected software:
OpenSSH
OpenSSH
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a client-side denial of service.
The vulnerability exists due to use-after-free in ssh(1) when processing a host key change during key reexchange. A remote attacker can change its host key during key reexchange to cause a client-side denial of service.
How to mitigate CVE-2026-60002
Install security update from vendor's website.