CVE-2009-1236: n/a vulnerability

CVE-2009-1236: Heap-based buffer overflow in the AppleTalk networking stack in XNU 1228.3.13 and earlier on Apple Mac OS X...

Heap-based buffer overflow in the AppleTalk networking stack in XNU 1228.3.13 and earlier on Apple Mac OS X 10.5.6 and earlier allows remote attackers to cause a denial of service (system crash) via a ZIP NOTIFY (aka ZIPOP_NOTIFY) packet that overwrites a certain ifPort structure member.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:04 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mac OS X kernel networking flaw in AppleTalk. A remote attacker could crash affected systems by sending a malformed AppleTalk ZIP NOTIFY packet. The business impact is availability loss for legacy Macs or services still dependent on Mac OS X 10.5.6 or earlier. Exposure is most likely limited to legacy Apple Mac OS X 10.5.6 and earlier systems with AppleTalk networking reachable. Modern supported macOS versions are not identified as affected in the provided bundle. Treat this as a legacy exposure and availability risk, not a broad modern macOS emergency. Prioritize if older Macs remain operational in production, lab, print, file-sharing, or industrial support roles. Mitigation focus: Inventory Mac OS X 10.5.6 or earlier systems and AppleTalk-dependent services.; Check Apple or vendor guidance for the supported update or configuration remediation.; Isolate affected legacy systems from untrusted or unnecessary network paths..

Prepared: Jun 28, 2026, 11:04 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 2, 2009, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
8262CVE reference · exploit, x_refsource_EXPLOIT-DB

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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