CVE-2017-2659

7.5 highEPSS 1.5%

It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.

Severity

CVSS 3.0

7.5 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWEs: CWE-287, CWE-209
Published: 2019-03-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dropbear_ssh_project:dropbear_ssh

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659
https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659
https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86

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