CVE-2006-1206: dropbear_ssh_project dropbear_ssh
Vulnerability summary
CVE-2006-1206 is a medium (CVSS 5.0) vulnerability in dropbear_ssh_project dropbear_ssh. EPSS estimates a 11.67% chance of exploitation in the next 30 days, higher than 96% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 14-03-2006PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
11.67%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
No change 0.00 pp
From 11.67% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundDropbear / OpenSSH Server - 'MAX_UNAUTH_CLIENTS' Denial of Service
Maturity: poc
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- dropbear< 0.48-1
Dropbear_ssh_project1 product
- dropbear_ssh≤ 0.47
2 vendors · 2 products
