CVE-2025-4878

LOW EPSS 7.8%
Published Jul 22, 202511mo ago · Modified Jun 17, 20261w ago
3.6 CVSS 3.1
Low
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Published Jul 22, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
3.6
Exploitability
1.0
Impact
2.5
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
7.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

References 6

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.