CVE-2016-20012
CVSS v3
5.3
MEDIUM
EPSS Score
14.6 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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
Technical details
- Published
- 2021-09-15
Frequently asked questions
What is CVE-2016-20012?
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
Is CVE-2016-20012 actively exploited?
Active exploitation of CVE-2016-20012 has not been confirmed. The EPSS score is 14.6%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2016-20012?
CVE-2016-20012 has a CVSS v3 base score of 5.3 (MEDIUM severity).
Is CVE-2016-20012 affecting your environment?
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