CVE-2006-1206

Exp

Matt Johnston Dropbear SSH server 0.47 and earlier, as used in embedded Linux devices and on general-purpose operating systems, allows remote attackers to cause a denial of service (connection slot exhaustion) via a large number of connection attempts that exceeds the MAX_UNAUTH_CLIENTS defined value of 30.

Published: 2006-03-14 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-1206 is rated High Exploit Risk (67.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 11.67%, 95th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-1206

EDB-ID Source Kind Published Link
1572 exploit_db edb 2006-03-10 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-1206

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 12.23% 11.67% -0.56%
2 2025-11-24 7.02% 12.23% +5.21%
3 2025-07-25 — 7.02% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-1206

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2006-1206

OS Trackers for CVE-2006-1206

vendor priority summary link
debian not yet assigned CVE-2006-1206 not yet assigned priority: Debian including 1 source packages (dropbear), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2006-1206
suse medium CVE-2006-1206 severity moderate: SUSE including 7 source package names (openssh, openssh-askpass, …), 13 product×package rows across 6 product lines (SUSE Linux Enterprise Micro 5.2, SUSE Linux Enterprise Point of Service 11 SP3, … (6 product lines)): Known Not Affected 13. https://www.suse.com/security/cve/CVE-2006-1206/
ubuntu negligible CVE-2006-1206 negligible priority: Ubuntu including 1 source packages (dropbear), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): ignored 4, not-affected 4, released 1. https://ubuntu.com/security/CVE-2006-1206

Affected software / configurations for CVE-2006-1206

Vendor Product Version Raw CPE
dropbear_ssh_project dropbear_ssh <= 0.47 cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*

References for CVE-2006-1206

cvelogic Threat Intelligence