What’s Vulnerable › Vulnerabilities

CVE-2009-2818

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-11-10 · updated 2026-06-16
• Weakness: CWE-264

Description

Adaptive Firewall in Apple Mac OS X before 10.6.2 does not properly handle invalid usernames in SSH login attempts, which makes it easier for remote attackers to obtain login access via a brute-force attack (aka dictionary attack).

Affected products

• Apple Mac Os X Server: through 10.6.1; 10.0, 10.0.0, 10.0.1, 10.0.2, 10.0.3, 10.0.4 (+52)

References

• http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
• http://support.apple.com/kb/HT3937
• http://www.securityfocus.com/bid/36956
• http://www.vupen.com/english/advisories/2009/3184
• http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
• http://support.apple.com/kb/HT3937
• http://www.securityfocus.com/bid/36956
• http://www.vupen.com/english/advisories/2009/3184

Get alerted when CVE-2009-2818 or the next vulnerability affects your stack