High 10.0Published Dec 16, 2008

CVE-2008-4220Integer overflow in the inet_net_pton API in Libsystem in Apple Mac OS X before 10.5.6 allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) vi…

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.

No exploitation reported and no EPSS estimate yet.

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Integer overflow in the inet_net_pton API in Libsystem in Apple Mac OS X before 10.5.6 allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors. NOTE: this may be related to the WLB-2008080064 advisory published by SecurityReason on 20080822; however, as of 20081216, there are insufficient details to be sure.

CVSS: 10.0 HIGH (v2.0, NVD)AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-189
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 10.5.5; 10.4.11; 10.5; 10.5.1; 10.5.2; 10.5.3; 10.5.4	NVD
apple mac_os_x_server apple:mac_os_x_server	through 10.5.5; 10.4.11; 10.5; 10.5.1; 10.5.2; 10.5.3; 10.5.4	NVD

References

References

http://lists.apple.com/archives/security-announce//2008//Dec/msg00000.html	vendor-advisory
http://secunia.com/advisories/33179	vendor-advisory
http://support.apple.com/kb/HT3338	vendor-advisory
http://www.securityfocus.com/bid/32839
http://www.securityfocus.com/bid/32877
http://www.securitytracker.com/id?1021406
http://www.us-cert.gov/cas/techalerts/TA08-350A.html	us-government-resource
http://www.vupen.com/english/advisories/2008/3444

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.