CVE-2016-7406
Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via format string specifiers in the (1) username or (2) host argument.
02 Description
Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via format string specifiers in the (1) username or (2) host argument.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 10.21% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.5% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-03-03 16:00Z9 YR AGO
- Last updated
- 2025-11-04 16:09Z11 MO AGO
- Reserved
- 2016-09-09
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.2
- Document digest
- 4270a49ba88c0e2e617c7fedaf7b5111c4ef556976600a8b5955860cf2fe6f4f
05 Affected products
06 References
- security.gentoo.orgGLSA-201702-23https://security.gentoo.org/glsa/201702-23
- www.securityfocus.com92974http://www.securityfocus.com/bid/92974
- www.openwall.com[oss-security] 20160915 Re: CVE request for Dropbear SSH <2016.74http://www.openwall.com/lists/oss-security/2016/09/15/2
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1376353
- secure.ucc.asn.auhttps://secure.ucc.asn.au/hg/dropbear/rev/b66a483f3dcb
- seclists.orghttp://seclists.org/fulldisclosure/2024/Aug/35
07 Fixed in
Debian 12
- dropbear Fixed in 2016.74-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- dropbear Fixed in 2016.74-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- dropbear Fixed in 2016.74-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- dropbear No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.