CVE record · CVE-2026-0966

Libssh: libssh: denial of service via zero-length input in ssh_get_hexa()

CVSS 6.5 MediumEPSS 0.0060 · 49th percentile

Published by the CVE Program (CNA: redhat) at 26 Mar 2026, 20:06 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.12.0-2.el10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-18.el9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-18.el9 to before * rpm Other versions: affected
Red Hat	Red Hat Hardened Images Package name: libssh-main https://catalog.redhat.com/software/containers/	unaffected 0.12.0-1.1.hum1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: libssh2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 7 Package name: libssh2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Hardened Images Package name: libssh2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected

Identifiers: CVE-2026-0966
CNA: redhat
Weakness (CWE): CWE-124
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Red Hat Hardened Images
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat OpenShift Container Platform 4
Memory corruption
Published: 26 Mar 2026
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.5	Medium	3.0	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0060, the 49th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

26 Mar 2026, 20:06 UTC Confirmed by the CVE List
26 Mar 2026, 21:17 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:18160 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:18683 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:7067 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-0966 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2433121 issue-trackingredhat
www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.