CVE record · CVE-2025-4878

Libssh: use of uninitialized variable in privatekey_from_file()

CVSS 3.6 LowEPSS 0.0023 · 13th percentile

Published by the CVE Program (CNA: redhat) at 22 Jul 2025, 14:17 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
Not given	Not given Package name: libssh https://www.libssh.org/	affected before 0.11.2 semver Other versions: unaffected
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 Enterprise Linux 10 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	No versions given 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: unknown
Red Hat	Red Hat Enterprise Linux 7 Package name: libssh2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
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 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-2025-4878
CNA: redhat
Weakness (CWE): CWE-416
Tags: Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat OpenShift Container Platform 4
Memory corruption
Published: 22 Jul 2025
Updated: 6 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
3.6	Low	3.1	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0023, the 13th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

22 Jul 2025, 14:17 UTC Confirmed by the CVE List
22 Jul 2025, 15:15 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:18683 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2025-4878 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2376184 issue-trackingredhat
git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1
git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedb
www.libssh.org/security/advisories/CVE-2025-4878.txt

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.