Improper Neutralization of Null Byte or NUL Character The advisory has been revoked - it doesn't affect any version of package openssh-keycat (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALMALINUX10-OPENSSHKEYCAT-14551070
- published23 Dec 2025
- disclosed17 Dec 2025
Introduced: 17 Dec 2025
CVE-2025-61985 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssh-keycat package and not the openssh-keycat package as distributed by AlmaLinux.
ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used.
References
- https://errata.almalinux.org/10/ALSA-2025-23479.html
- https://errata.almalinux.org/9/ALSA-2025-23480.html
- https://errata.almalinux.org/8/ALSA-2025-23481.html
- https://access.redhat.com/security/cve/CVE-2025-61985
- https://access.redhat.com/errata/RHSA-2025:23479
- https://access.redhat.com/errata/RHSA-2025:23480
- https://access.redhat.com/errata/RHSA-2025:23481
- https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2
- https://www.openssh.com/releasenotes.html#10.1p1
- https://www.openwall.com/lists/oss-security/2025/10/06/1
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html