CVE-2016-20012

low
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
2.5

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

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-20012

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-20012.html

OS impact

OSVersionStatusFixed in
suse slesaffected
arch archfixed8.9p1-1
debian debianbookwormaffected
debian debianbullseyeaffected
debian debianforkyaffected
debian debiansidaffected
debian debiantrixieaffected

References

Verify integrity in audit chain (admin only). AS-IS.