CVE-2009-1236
Heap-based buffer overflow in the AppleTalk networking stack in XNU 1228.3.13 and earlier on...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-1236- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-1236- Updated
- 2026-11-02
EUVDEUVD-2009-1235 No score
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.
- Record
EUVD-2009-1235- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9p6w-24v2-vpv6 No score
Heap-based buffer overflow in the AppleTalk networking stack in XNU 1228.3.13 and earlier on...
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.
- Record
GHSA-9p6w-24v2-vpv6- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Apple Mac OSX xnu 1228.3.13 - 'zip-notify' Remote Kernel Overflow (PoC) | 2009-03-23 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-1236 is a high vulnerability (CVSS 10.0) in Apple Mac Os X, published April 2, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.41%, the 95th percentile. No source names a fixed version.