OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 29 May 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-203
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.20004}

epss

{'score': 0.21372}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-29T15:38:31.136Z

Reserved: 2021-09-15T00:00:00.000Z

Link: CVE-2016-20012

cve-icon Vulnrichment

Updated: 2024-08-06T03:47:34.948Z

cve-icon NVD

Status : Modified

Published: 2021-09-15T20:15:07.310

Modified: 2026-05-29T16:16:16.030

Link: CVE-2016-20012

cve-icon Redhat

Severity : Low

Publid Date: 2016-02-07T00:00:00Z

Links: CVE-2016-20012 - Bugzilla

cve-icon OpenCVE Enrichment

No data.