CVE-2025-8114: libssh NULL Pointer Dereference
CVSS: 4.7v3.1MediumModified
AliasesSUSE-SU-2025:4408-1UBUNTU-CVE-2025-8114USN-7849-1DEBIAN-CVE-2025-8114CGA-56gm-m8pc-7762CGA-jr8f-qhr2-qmfv
Published 24-07-2025Last modified 01-09-2026
Vulnerability summary
CVE-2025-8114 is a medium (CVSS 4.7) NULL Pointer Dereference vulnerability in libssh. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.2% of scored vulnerabilities.
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)EPSS score
0.24%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 24-07-2025PublishedVulnerability first disclosed.
- 01-09-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 6 sources · 1 versionMedium 4.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
+0.02 pp
From 0.22% on 19-09-2026
19-09-202619-10-2026
EPSS score0.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard1 product
- libssh-dev< 0.11.3-r0
Debian1 product
- libssh< 0.10.6-0+deb12u2 | < 0.11.2-1+deb13u1 | < 0.11.3-1
Libssh1 product
- libssh≤ 0.11.2
Suse1 product
- libssh&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5< 0.6.3-12.21.1
Ubuntu1 product
- libssh< 0.6.3-4.3ubuntu0.6+esm3 | < 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5 | < 0.9.3-2ubuntu2.5+esm2 | < 0.9.6-2ubuntu0.22.04.5 | < 0.10.6-2ubuntu0.2 | < 0.11.2-1ubuntu0.1
Wolfi1 product
- libssh-dev< 0.11.3-r0
6 vendors · 6 products
References
17 links- access.redhat.com/security/cve/CVE-2025-8114VDB EntryX Refsource REDHATREPORTAdvisoryThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2383220Issue TrackingX Refsource REDHATREPORTThird Party Advisory
