CVE-2017-2659
It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.50% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-209, CWE-287
- Affected
- dropbear ssh project/dropbear ssh
- Source
- secalert@redhat.com
EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659Issue Tracking, Patch, Third Party Advisory
- https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659Issue Tracking, Patch, Third Party Advisory
- https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.