CVE-2025-61985
ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used.
CVE-2025-61985 is fixed in 23 products on 1 platform, first by RHSA-2026:1678, released October 6, 2025. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.3
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile
OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es): * openssh: OpenSSH: Control characters in usernames can lead to code execution via ProxyCommand (CVE-2025-61984) * openssh: OpenSSH: Null character in ssh:// URI can lead to code execution via ProxyCommand (CVE-2025-61985) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| openssh · Debian 12.15 (bookworm) | 1:9.2p1-2+deb12u8 | DEBIAN-CVE-2025-61985 | Oct 6, 2025 |
| openssh · Debian 13.5 (trixie) | 1:10.0p1-7+deb13u1 | DEBIAN-CVE-2025-61985 | Oct 6, 2025 |
| openssh · Debian 14 | 1:10.1p1-1 | DEBIAN-CVE-2025-61985 | Oct 6, 2025 |
| openssh · RHEL 10 | 9.9p1-7.el10_0.1 | RHSA-2026:1678 | Oct 6, 2025 |
| openssh · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh · RHEL 9 | 0:8.7p1-47.el9_7 | RHSA-2025:23480 | Dec 17, 2025 |
| openssh · almalinux 10 | 9.9p1-12.el10_1.alma.1 | ALSA-2025:23479 | Dec 17, 2025 |
| openssh · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh · almalinux 9 | 8.7p1-47.el9_7.alma.1 | ALSA-2025:23480 | Dec 17, 2025 |
| openssh · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh · ol 10 | 0:9.9p1-12.0.1.el10_1 | ELSA-2025-23479 | Dec 17, 2025 |
| openssh · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh · ol 9 | 0:8.7p1-47.0.1.el9_7 | ELSA-2025-23480 | Dec 18, 2025 |
| openssh · opensuse-leap 15.6 | 9.6p1-150600.6.34.1 | SUSE-SU-2025:4067-1 | Nov 12, 2025 |
| openssh · opensuse-leap 16.0 | 10.0p2-160000.3.1 | OPENSUSE-SU-2025:20122-1 | Nov 28, 2025 |
| openssh · rocky 10 | 0:9.9p1-12.el10_1.rocky.0.1 | RLSA-2025:23479 | May 21, 2026 |
| openssh · rocky 8 | 0:8.0p1-27.el8_10 | RLSA-2025:23481 | Dec 18, 2025 |
| openssh · rocky 9 | 0:8.7p1-47.el9_7.rocky.0.1 | RLSA-2025:23480 | May 21, 2026 |
| openssh · sles 15.6 | 9.6p1-150600.6.34.1 | SUSE-SU-2025:4067-1 | Nov 12, 2025 |
| openssh · sles 15.7 | 9.6p1-150600.6.34.1 | SUSE-SU-2025:4067-1 | Nov 12, 2025 |
| openssh · sles 16.0 | 10.0p2-160000.3.1 | SUSE-SU-2025:21161-1 | Nov 28, 2025 |
| openssh-askpass · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh-askpass · RHEL 9 | 0:8.7p1-47.el9_7 | RHSA-2025:23480 | Dec 17, 2025 |
| openssh-askpass · almalinux 10 | 9.9p1-12.el10_1.alma.1 | ALSA-2025:23479 | Dec 17, 2025 |
| openssh-askpass · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh-askpass · almalinux 9 | 8.7p1-47.el9_7.alma.1 | ALSA-2025:23480 | Dec 17, 2025 |
| openssh-askpass · ol 10 | 0:9.9p1-12.0.1.el10_1 | ELSA-2025-23479 | Dec 17, 2025 |
| openssh-askpass · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh-askpass · ol 9 | 0:8.7p1-47.0.1.el9_7 | ELSA-2025-23480 | Dec 18, 2025 |
| openssh-askpass-gnome · opensuse-leap 15.6 | 9.6p1-150600.6.34.1 | SUSE-SU-2025:4067-1 | Nov 12, 2025 |
| openssh-askpass-gnome · opensuse-leap 16.0 | 10.0p2-160000.3.1 | OPENSUSE-SU-2025:20122-1 | Nov 28, 2025 |
| openssh-askpass-gnome · sles 15.6 | 9.6p1-150600.6.34.1 | SUSE-SU-2025:4067-1 | Nov 12, 2025 |
| openssh-askpass-gnome · sles 15.7 | 9.6p1-150600.6.34.1 | SUSE-SU-2025:4067-1 | Nov 12, 2025 |
| openssh-askpass-gnome · sles 16.0 | 10.0p2-160000.3.1 | SUSE-SU-2025:21161-1 | Nov 28, 2025 |
| openssh-cavs · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh-cavs · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh-cavs · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh-client · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm1 | openssh-client 1:8.2p1-4ubuntu0.13+esm1 | Mar 12, 2026 |
| openssh-client · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.14 | openssh-client 1:8.9p1-3ubuntu0.14 | Mar 12, 2026 |
| openssh-client · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.15 | openssh-client 1:9.6p1-3ubuntu13.15 | Mar 12, 2026 |
| openssh-client · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | openssh-client 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| openssh-client · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | openssh-client 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| openssh-client-gssapi · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | openssh-client-gssapi 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| openssh-client-gssapi · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | openssh-client-gssapi 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| openssh-clients · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh-clients · RHEL 9 | 0:8.7p1-47.el9_7 | RHSA-2025:23480 | Dec 17, 2025 |
| openssh-clients · almalinux 10 | 9.9p1-12.el10_1.alma.1 | ALSA-2025:23479 | Dec 17, 2025 |
| openssh-clients · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh-clients · almalinux 9 | 8.7p1-47.el9_7.alma.1 | ALSA-2025:23480 | Dec 17, 2025 |
| openssh-clients · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-clients · ol 10 | 0:9.9p1-12.0.1.el10_1 | ELSA-2025-23479 | Dec 17, 2025 |
| openssh-clients · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh-clients · ol 9 | 0:8.7p1-47.0.1.el9_7 | ELSA-2025-23480 | Dec 18, 2025 |
| openssh-clients-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-debugsource · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-keycat · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh-keycat · RHEL 9 | 0:8.7p1-47.el9_7 | RHSA-2025:23480 | Dec 17, 2025 |
| openssh-keycat · almalinux 10 | 9.9p1-12.el10_1.alma.1 | ALSA-2025:23479 | Dec 17, 2025 |
| openssh-keycat · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh-keycat · almalinux 9 | 8.7p1-47.el9_7.alma.1 | ALSA-2025:23480 | Dec 17, 2025 |
| openssh-keycat · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-keycat · ol 10 | 0:9.9p1-12.0.1.el10_1 | ELSA-2025-23479 | Dec 17, 2025 |
| openssh-keycat · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh-keycat · ol 9 | 0:8.7p1-47.0.1.el9_7 | ELSA-2025-23480 | Dec 18, 2025 |
| openssh-keycat-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-keysign · almalinux 10 | 9.9p1-12.el10_1.alma.1 | ALSA-2025:23479 | Dec 17, 2025 |
| openssh-keysign · ol 10 | 0:9.9p1-12.0.1.el10_1 | ELSA-2025-23479 | Dec 17, 2025 |
| openssh-ldap · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh-ldap · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh-ldap · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh-server · RHEL 8 | 0:8.0p1-27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| openssh-server · RHEL 9 | 0:8.7p1-47.el9_7 | RHSA-2025:23480 | Dec 17, 2025 |
| openssh-server · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm1 | openssh-server 1:8.2p1-4ubuntu0.13+esm1 | Mar 12, 2026 |
| openssh-server · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.14 | openssh-server 1:8.9p1-3ubuntu0.14 | Mar 12, 2026 |
| openssh-server · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.15 | openssh-server 1:9.6p1-3ubuntu13.15 | Mar 12, 2026 |
| openssh-server · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | openssh-server 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| openssh-server · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | openssh-server 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| openssh-server · almalinux 10 | 9.9p1-12.el10_1.alma.1 | ALSA-2025:23479 | Dec 17, 2025 |
| openssh-server · almalinux 8 | 8.0p1-27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| openssh-server · almalinux 9 | 8.7p1-47.el9_7.alma.1 | ALSA-2025:23480 | Dec 17, 2025 |
| openssh-server · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-server · ol 10 | 0:9.9p1-12.0.1.el10_1 | ELSA-2025-23479 | Dec 17, 2025 |
| openssh-server · ol 8 | 0:8.0p1-27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| openssh-server · ol 9 | 0:8.7p1-47.0.1.el9_7 | ELSA-2025-23480 | Dec 18, 2025 |
| openssh-server-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| openssh-server-gssapi · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | openssh-server-gssapi 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| openssh-server-gssapi · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | openssh-server-gssapi 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| openssh-sftp-server · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm1 | openssh-sftp-server 1:8.2p1-4ubuntu0.13+esm1 | Mar 12, 2026 |
| openssh-sftp-server · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.14 | openssh-sftp-server 1:8.9p1-3ubuntu0.14 | Mar 12, 2026 |
| openssh-sftp-server · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.15 | openssh-sftp-server 1:9.6p1-3ubuntu13.15 | Mar 12, 2026 |
| openssh-sftp-server · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | openssh-sftp-server 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| openssh-sftp-server · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | openssh-sftp-server 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| openssh-tests · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm1 | openssh-tests 1:8.2p1-4ubuntu0.13+esm1 | Mar 12, 2026 |
| openssh-tests · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.14 | openssh-tests 1:8.9p1-3ubuntu0.14 | Mar 12, 2026 |
| openssh-tests · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.15 | openssh-tests 1:9.6p1-3ubuntu13.15 | Mar 12, 2026 |
| openssh-tests · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | openssh-tests 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| openssh-tests · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | openssh-tests 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| pam_ssh_agent_auth · RHEL 8 | 0:0.10.3-7.27.el8_10 | RHSA-2025:23481 | Dec 17, 2025 |
| pam_ssh_agent_auth · RHEL 9 | 0:0.10.4-5.47.el9_7 | RHSA-2025:23480 | Dec 17, 2025 |
| pam_ssh_agent_auth · almalinux 8 | 0.10.3-7.27.el8_10 | ALSA-2025:23481 | Dec 17, 2025 |
| pam_ssh_agent_auth · almalinux 9 | 0.10.4-5.47.el9_7.alma.1 | ALSA-2025:23480 | Dec 17, 2025 |
| pam_ssh_agent_auth · amzn 2023 | 0.10.4-4.8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| pam_ssh_agent_auth · ol 8 | 0:0.10.3-7.27.0.1.el8_10 | ELSA-2025-23481 | Dec 18, 2025 |
| pam_ssh_agent_auth · ol 9 | 0:0.10.4-5.47.0.1.el9_7 | ELSA-2025-23480 | Dec 18, 2025 |
| pam_ssh_agent_auth-debuginfo · amzn 2023 | 0.10.4-4.8.amzn2023.0.16 | ALAS2023-2026-1441 | Feb 16, 2026 |
| ssh · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm1 | ssh 1:8.2p1-4ubuntu0.13+esm1 | Mar 12, 2026 |
| ssh · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.14 | ssh 1:8.9p1-3ubuntu0.14 | Mar 12, 2026 |
| ssh · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.15 | ssh 1:9.6p1-3ubuntu13.15 | Mar 12, 2026 |
| ssh · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | ssh 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| ssh · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | ssh 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
| ssh-askpass-gnome · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm1 | ssh-askpass-gnome 1:8.2p1-4ubuntu0.13+esm1 | Mar 12, 2026 |
| ssh-askpass-gnome · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.14 | ssh-askpass-gnome 1:8.9p1-3ubuntu0.14 | Mar 12, 2026 |
| ssh-askpass-gnome · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.15 | ssh-askpass-gnome 1:9.6p1-3ubuntu13.15 | Mar 12, 2026 |
| ssh-askpass-gnome · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.1 | ssh-askpass-gnome 1:10.0p1-5ubuntu5.1 | Mar 12, 2026 |
| ssh-askpass-gnome · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu1 | ssh-askpass-gnome 1:10.2p1-2ubuntu1 | Oct 6, 2025 |
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