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CVE-2020-14145 (GCVE-0-2020-14145)

Vulnerability from cvelistv5 – Published: 2020-06-29 17:33 – Updated: 2025-12-18 14:41
VLAI
Summary
The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 14:41 UTC
CWE
  • n/a
  • CWE-203 - Observable Discrepancy
Assigner
References
Show details on NVD website
To clipboard 

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      "current_release_date": "2025-12-18T16:12:22+00:00",
      "cve": "CVE-2020-14145",
      "id": "CVE-2020-14145",
      "initial_release_date": "2020-06-29T00:00:00+00:00",
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      "product_status:known_affected": "18",
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      "version": "3"
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      "current_release_date": "2026-09-04T00:51:24Z",
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      "initial_release_date": "2023-02-15T03:58:00Z",
      "product_status:known_affected": "388",
      "product_status:known_not_affected": "131",
      "product_status:recommended": "246",
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      "status": "interim",
      "title": "SUSE CVE CVE-2020-14145",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-14145.json",
      "version": "38"
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}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.