Libssh: use of uninitialized variable in privatekey_from_file()
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.6epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
libsshRed Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat OpenShift Container Platform 4References
https://access.redhat.com/errata/RHSA-2026:18683https://access.redhat.com/security/cve/CVE-2025-4878https://bugzilla.redhat.com/show_bug.cgi?id=2376184https://git.libssh.org/projects/libssh.git/commit/?id=697650caa97eaf7623924c75f9fcfec6dd423cd1https://git.libssh.org/projects/libssh.git/commit/?id=b35ee876adc92a208d47194772e99f9c71e0bedbhttps://www.libssh.org/security/advisories/CVE-2025-4878.txt