CVE-2009-2818

Name: CVE-2009-2818
Creator: NVD / NIST
Published: 2009-11-10T19:30:01.17+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.88%

Last modified Jun 16, 2026

CVE-2009-2818 is a vulnerability of currently unknown severity. 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).. EPSS estimates a 1.88% chance of exploitation in the next 30 days.

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).

Metrics

EPSS Probability

1.88%

76.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Apple	Mac Os X Server	<= 10.6.1
Apple	Mac Os X Server	10.0
Apple	Mac Os X Server	10.0.0
Apple	Mac Os X Server	10.0.1
Apple	Mac Os X Server	10.0.2
Apple	Mac Os X Server	10.0.3
Apple	Mac Os X Server	10.0.4
Apple	Mac Os X Server	10.1
Apple	Mac Os X Server	10.1.0
Apple	Mac Os X Server	10.1.1
Apple	Mac Os X Server	10.1.2
Apple	Mac Os X Server	10.1.3
Apple	Mac Os X Server	10.1.4
Apple	Mac Os X Server	10.1.5
Apple	Mac Os X Server	10.2
Apple	Mac Os X Server	10.2.0
Apple	Mac Os X Server	10.2.1
Apple	Mac Os X Server	10.2.2
Apple	Mac Os X Server	10.2.3
Apple	Mac Os X Server	10.2.4
Apple	Mac Os X Server	10.2.5
Apple	Mac Os X Server	10.2.6
Apple	Mac Os X Server	10.2.7
Apple	Mac Os X Server	10.2.8
Apple	Mac Os X Server	10.3
Apple	Mac Os X Server	10.3.0
Apple	Mac Os X Server	10.3.1
Apple	Mac Os X Server	10.3.2
Apple	Mac Os X Server	10.3.3
Apple	Mac Os X Server	10.3.4
Apple	Mac Os X Server	10.3.5
Apple	Mac Os X Server	10.3.6
Apple	Mac Os X Server	10.3.7
Apple	Mac Os X Server	10.3.8
Apple	Mac Os X Server	10.3.9
Apple	Mac Os X Server	10.4
Apple	Mac Os X Server	10.4.0
Apple	Mac Os X Server	10.4.1
Apple	Mac Os X Server	10.4.2
Apple	Mac Os X Server	10.4.3
Apple	Mac Os X Server	10.4.4
Apple	Mac Os X Server	10.4.5
Apple	Mac Os X Server	10.4.6
Apple	Mac Os X Server	10.4.7
Apple	Mac Os X Server	10.4.8
Apple	Mac Os X Server	10.4.9
Apple	Mac Os X Server	10.4.10
Apple	Mac Os X Server	10.4.11
Apple	Mac Os X Server	10.5
Apple	Mac Os X Server	10.5.0

Showing 50 of 59 affected configurations. See NVD for the full list.

References

http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.htmlVendor Advisory
http://support.apple.com/kb/HT3937Patch, Vendor Advisory
http://www.securityfocus.com/bid/36956Patch
http://www.vupen.com/english/advisories/2009/3184
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.htmlVendor Advisory
http://support.apple.com/kb/HT3937Patch, Vendor Advisory
http://www.securityfocus.com/bid/36956Patch
http://www.vupen.com/english/advisories/2009/3184

Timeline

Published: Nov 10, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-2818?

How severe is CVE-2009-2818?

Severity scoring for CVE-2009-2818 is pending analysis. The EPSS model estimates a 1.88% probability of exploitation in the next 30 days.

How do I fix CVE-2009-2818?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2818?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST