Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt…
Priority LOW 32CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.
Why it matters now
EPSS 0.05749 93rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:* | before 2013.59 | Vulnerable | Dropbear SSH Project |
- cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:* Versions before 2013.59 Vulnerable ·Dropbear SSH Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4434
- 2026-10-03 Alias added: GHSA-7j5m-wjm2-xppv
References
More Dropbear SSH Project Dropbear Ssh vulnerabilities
- TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
- TI-2016-06307 Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to… CVSS 3.0CRITICAL 9.8
- TI-2016-06308 The dropbearconvert command in Dropbear SSH before 2016.74 allows attackers to execute… CVSS 3.0CRITICAL 9.8
- TI-2016-02614 CRLF injection vulnerability in Dropbear SSH before 2016.72 allows remote authenticated… CVSS 3.0MEDIUM 6.4
- TI-2017-06540 The server in Dropbear before 2017.75 might allow post-authentication root remote code… CVSS 3.1HIGH 8.8
- TI-2016-06309 The dbclient in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary… CVSS 3.0HIGH 8.8
Sources
- CVE-2013-4434 · CVE Program
- CVE-2013-4434 · NVD
- FIRST EPSS
- GHSA-7j5m-wjm2-xppv · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4434 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences