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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
redhatCNA
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADPADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
VendorProductVersion
libsshlibssh
𝑥
≤ 0.11.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libssh
bullseye
vulnerable
bookworm
no-dsa
bullseye (security)
0.9.8-0+deb11u2
fixed
bookworm (security)
vulnerable
trixie
0.11.2-1+deb13u1
fixed
forky
0.11.3-1
fixed
sid
0.11.3-1
fixed
Common Weakness Enumeration
References
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