NULL pointer dereference in Libssh
CVE-2025-8114
A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash.
EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
- secalert@redhat.com
- secalert@redhat.com
- secalert@redhat.com
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2025-8114?
- CVE-2025-8114 is a medium-severity vulnerability in Libssh, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2025-07-24.
- How severe is CVE-2025-8114?
- Medium severity. CVSS v3 base score is 4.7 out of 10.