Cyber Resilience

CVE-2025-8114

MediumUpdated

Published: 24 July 2025

Published
24 July 2025
Modified
19 May 2026
KEV Added
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Patch
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CVSS Score v3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0016 36.4th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-8114 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Libssh Libssh. Its CVSS base score is 4.7 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 36.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

cause the client or server to crash.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

NULL pointer dereference in libssh during KEX session ID calculation causes crashes in SSH clients/servers, enabling endpoint DoS via application exploitation by local attackers.

Affected Assets

libssh
libssh
≤ 0.11.2

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References