High 7.8Published Mar 30, 2010

CVE-2010-0500Event Monitor in Apple Mac OS X before 10.6.3 does not properly validate hostnames of SSH clients, which allows remote attackers to cause a denial of service (arbitrary client blacklisting) via a cra…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects apple mac_os_x and 1 other product. Add what you run to find out whether that includes you.

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Event Monitor in Apple Mac OS X before 10.6.3 does not properly validate hostnames of SSH clients, which allows remote attackers to cause a denial of service (arbitrary client blacklisting) via a crafted DNS PTR record, related to a "plist injection issue."

CVSS: 7.8 HIGH (v2.0, NVD)AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apple mac_os_x apple:mac_os_x	through 10.6.2; 10.5; 10.5.0; 10.5.1; 10.5.2; 10.5.3; 10.5.4; 10.5.5; and 5 more ranges	NVD
apple mac_os_x_server apple:mac_os_x_server	through 10.6.2; 10.5; 10.5.0; 10.5.1; 10.5.2; 10.5.3; 10.5.4; 10.5.5; and 5 more ranges	NVD

References

References

http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html	patch, vendor-advisory
http://support.apple.com/kb/HT4077	patch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.