vulnerability
OpenSSH Vulnerability: CVE-2023-25136
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:M/Au:N/C:N/I:P/A:C) | Feb 3, 2023 | Feb 13, 2023 | Aug 11, 2025 |
Severity
8
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:C)
Published
Feb 3, 2023
Added
Feb 13, 2023
Modified
Aug 11, 2025
Description
OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."
Solution
openbsd-openssh-upgrade-latest
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