CVE-2025-8114
Low
No strong exploitation signal.
CVSS base
4.7
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.2%
13.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-476
Published 2025-07-24 · modified 2026-09-01
CVSS breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | L | Local |
| Attack Complexity | H | High |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2025-07-24 — Published (NVD)
- 2026-09-01 — Last modified (NVD)
Description
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.
Affected
References
- https://access.redhat.com/errata/RHSA-2026:18683
- https://access.redhat.com/security/cve/CVE-2025-8114
- https://bugzilla.redhat.com/show_bug.cgi?id=2383220
- https://git.libssh.org/projects/libssh.git/commit/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d
- https://git.libssh.org/projects/libssh.git/commit/?id=65f363c9
- https://www.libssh.org/security/advisories/CVE-2025-8114.txt