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Vulnerabilities

Vulnerability · CVE-2020-14145

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation.

Published Jun 29, 2020 · catalog updated Oct 14, 2026 · The client side in

Check if you run it

No confirmed exploitation is on record for CVE-2020-14145. EPSS is 2.95%. Act only if a listed version of The client side in is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The client side in).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.95%
Remediation
Advisory link
Affected products
cpe netapp/active iq unified manager · cpe netapp/aff a700s firmware · cpe netapp/hci management node · cpe netapp/ontap select deploy administration utility · cpe openbsd/openssh

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe netapp/active iq unified managerversion unspecified
  • cpe netapp/aff a700s firmwareversion unspecified
  • cpe netapp/hci management nodeversion unspecified
  • cpe netapp/ontap select deploy administration utilityversion unspecified
  • cpe openbsd/openssh8.4
  • cpe openbsd/openssh8.5
  • cpe openbsd/openssh8.6

How to fix CVE-2020-14145

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-14145. EPSS is 2.95%. Act only if a listed version of The client side in is installed.

Which versions are affected?

Compare what you have installed with 8.4, 8.5, 8.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-203: Observable Discrepancy. EPSS 2.95%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 29, 2020 · NIST NVD

    Detected

    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.

  2. Oct 14, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2020-14145

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-14145

    30-day exploitation probability 2.9%

    first.org
  • NIST NVDVulnerability recordCVE-2020-14145

    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). NO

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.