CVE-2016-6210

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 13 Feb 2017, 00:00
Last modified:29 May 2026, 20:17

Vulnerability Summary

Overall Risk (default)
high
52/100
CVSS Score
5.9 MEDIUM
v3.1 (nvd)
EPSS Score
90.05% CRITICAL
90% probability -2.44%
KEV
Not listed
Ransomware
No reports
Public exploits
3 found
Dark Web
Not detected

Timeline

13 Feb 2017, 00:00
Published
Vulnerability first disclosed
29 May 2026, 20:17
Last Modified
Vulnerability information updated

Description

sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • v3.0•MEDIUM•Score: 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 90.05%• Percentile: 100%

Techniques & Countermeasures

  • CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Systems

  • openbsd•openssh

    ≤ 7.2

References (12)