CVE-2025-8114

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

Score 4.7 from GitHub Security Advisory published 2025-07-25. NVD baseline CVSS 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

A fix is available — apply it.

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 v3
4.7
EG Score
4.7(medium)
EG Risk
21(Track)
EG Risk 21/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

July 24, 2025

Last Modified

August 21, 2026

Advisory Details (6)

Auto-updated Jun 27, 2026
Patch available. Sources: redhat.
generic
https://www.libssh.org/security/advisories/CVE-2025-8114.txt
generic

projects/libssh.git - libssh shared repository

https://git.libssh.org/projects/libssh.git/commit/?id=65f363c9
generic

projects/libssh.git - libssh shared repository

https://git.libssh.org/projects/libssh.git/commit/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d
redhat Patch Available

2383220 – (CVE-2025-8114) CVE-2025-8114 libssh: NULL Pointer Dereference in libssh KEX Session ID Calculation

Affected: Red Hat Enterprise Linux 9

https://bugzilla.redhat.com/show_bug.cgi?id=2383220
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-8114
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:18683

Vendor Advisories for CVE-2025-8114(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibssh-gcrypt-dev (0.9.6-2ubuntu0.22.04.5) @ jammy2026-08-21ubuntu
redhatlibssh-0:0.10.4-18.el92026-05-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libssh0.9.5-1 ... 0.9.8-0+deb11u1 (6 versions)0.9.8-0+deb11u2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libssh0.10.5-2, 0.10.5-3, 0.10.5-3+hurd.1, 0.10.6-0+deb12u10.10.6-0+deb12u2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libssh0.11.2-10.11.2-1+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libssh0.11.2-10.11.3-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 157 total refreshes for this CVE.

  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-24 14:16 UTCEPSS rescore
  3. 2026-08-23 00:18 UTCEPSS rescore
  4. 2026-08-21 23:48 UTCEPSS rescore
  5. 2026-08-21 12:20 UTCVendor advisory
  6. 2026-08-21 12:20 UTCGHSA enrichment
  7. 2026-08-21 12:15 UTCEG score recompute
  8. 2026-08-21 12:15 UTCVendor advisory
  9. 2026-08-21 12:15 UTCGHSA enrichment
  10. 2026-08-20 22:55 UTCEPSS rescore
  11. 2026-08-19 17:03 UTCEPSS rescore
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  19. 2026-08-12 09:17 UTCOSV refresh
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  21. 2026-08-10 23:59 UTCEPSS rescore
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  1. 2026-08-05 19:17 UTCEPSS rescore
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  6. 2026-07-30 16:27 UTCEPSS rescore
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  8. 2026-07-27 16:27 UTCOSV refresh
  9. 2026-07-27 14:13 UTCEPSS rescore
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  17. 2026-07-23 03:03 UTCEG score recompute
  18. 2026-07-22 14:08 UTCEPSS rescore
  19. 2026-07-21 15:24 UTCEPSS rescore
  20. 2026-07-20 17:08 UTCEPSS rescore
  21. 2026-07-19 14:30 UTCEPSS rescore
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  27. 2026-07-16 17:02 UTCEPSS rescore
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  36. 2026-07-11 08:27 UTCEPSS rescore
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  38. 2026-07-10 08:58 UTCOSV refresh
  39. 2026-07-09 19:10 UTCEPSS rescore
  40. 2026-07-08 15:15 UTCEPSS rescore
  41. 2026-07-07 13:46 UTCEPSS rescore
  42. 2026-07-06 16:27 UTCEPSS rescore
  43. 2026-07-06 02:23 UTCEPSS rescore
  44. 2026-07-05 02:30 UTCEPSS rescore
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  48. 2026-07-01 15:06 UTCEPSS rescore
  49. 2026-06-30 23:22 UTCEPSS rescore
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  51. 2026-06-29 14:06 UTCEPSS rescore
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  57. 2026-06-27 03:08 UTCEPSS rescore
  58. 2026-06-25 13:49 UTCEPSS rescore
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  65. 2026-06-21 19:13 UTCOSV refresh
  66. 2026-06-21 14:56 UTCEPSS rescore
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  74. 2026-06-17 17:53 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-8114?
CVE-2025-8114 is a medium vulnerability published on July 24, 2025. 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.
When was CVE-2025-8114 disclosed?
CVE-2025-8114 was first published in the National Vulnerability Database on July 24, 2025, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-8114 actively exploited?
CVE-2025-8114 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.5% of all scored CVEs.
What is the CVSS score of CVE-2025-8114?
CVE-2025-8114 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2025-8114?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-8114, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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