Low severity3.6NVD Advisory· Published Oct 6, 2025· Updated Apr 15, 2026
CVE-2025-61984
CVE-2025-61984
Description
ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
62- Range: <10.1
- osv-coords61 versionspkg:julia/OpenSSH_jll?uuid=9bd350c2-7e96-507f-8002-3f2e150b4e1bpkg:rpm/almalinux/opensshpkg:rpm/almalinux/openssh-askpasspkg:rpm/almalinux/openssh-cavspkg:rpm/almalinux/openssh-clientspkg:rpm/almalinux/openssh-keycatpkg:rpm/almalinux/openssh-keysignpkg:rpm/almalinux/openssh-ldappkg:rpm/almalinux/openssh-serverpkg:rpm/almalinux/pam_ssh_agent_authpkg:rpm/opensuse/openssh-askpass-gnome&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/openssh-askpass-gnome&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/openssh&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/openssh&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/openssh8.4&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/openssh8.4&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP6pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/openssh&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/openssh&distro=SUSE%20Manager%20Proxy%20LTS%204.3pkg:rpm/suse/openssh&distro=SUSE%20Manager%20Server%20LTS%204.3
< 10.1.1+0+ 60 more
- (no CPE)range: < 10.1.1+0
- (no CPE)range: < 9.9p1-12.el10_1.alma.1
- (no CPE)range: < 9.9p1-12.el10_1.alma.1
- (no CPE)range: < 8.0p1-27.el8_10
- (no CPE)range: < 9.9p1-12.el10_1.alma.1
- (no CPE)range: < 9.9p1-12.el10_1.alma.1
- (no CPE)range: < 9.9p1-12.el10_1.alma.1
- (no CPE)range: < 8.0p1-27.el8_10
- (no CPE)range: < 9.9p1-12.el10_1.alma.1
- (no CPE)range: < 0.10.4-5.47.el9_7.alma.1
- (no CPE)range: < 9.6p1-150600.6.34.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 9.6p1-150600.6.34.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 8.4p1-8.19.1
- (no CPE)range: < 8.4p1-8.19.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 9.6p1-150600.6.34.1
- (no CPE)range: < 9.6p1-150600.6.34.1
- (no CPE)range: < 7.2p2-81.34.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 7.2p2-81.34.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 9.6p1-150600.6.34.1
- (no CPE)range: < 9.6p1-150600.6.34.1
- (no CPE)range: < 7.2p2-81.34.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 7.2p2-81.34.1
- (no CPE)range: < 9.6p1-4.1
- (no CPE)range: < 9.6p1-slfo.1.1_3.1
- (no CPE)range: < 10.0p2-160000.3.1
- (no CPE)range: < 8.4p1-150300.3.57.1
- (no CPE)range: < 8.4p1-150300.3.57.1
Patches
Vulnerability mechanics
References
8- www.openwall.com/lists/oss-security/2025/10/07/1nvd
- www.openwall.com/lists/oss-security/2025/10/12/1nvd
- dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984nvd
- marc.infonvd
- www.openssh.com/releasenotes.htmlnvd
- www.openwall.com/lists/oss-security/2025/10/06/1nvd
- www.vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-opensshnvd
- www.vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-opensshnvd
News mentions
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