CVE-2019-8717

HIGH

macOS < 10.15 and tvOS < 13 - Out-of-bounds Write

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-8717. PoCs published by Google Security Research.

AI-analyzed exploit summary This writeup describes a race condition in the XNU IPComp implementation leading to a double-free vulnerability. The bug is triggered by concurrent processing of IPComp packets on multiple network interfaces, causing memory corruption.

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15, tvOS 13. An application may be able to execute arbitrary code with kernel privileges.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Google Security Research · textdosmacos
https://www.exploit-db.com/exploits/47479

This writeup describes a race condition in the XNU IPComp implementation leading to a double-free vulnerability. The bug is triggered by concurrent processing of IPComp packets on multiple network interfaces, causing memory corruption.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Complex
Reliability
Racy
Target: Apple XNU kernel (macOS, specifically X86-64)
No auth needed
Prerequisites: Attacker must be able to send traffic to the target over two network interfaces simultaneously
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT210722
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT210634

Scores

CVSS v3 7.8
EPSS 0.0129
EPSS Percentile 66.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (2)
apple/mac_os_x < 10.15
apple/tvos < 13
Published Dec 18, 2019
Tracked Since Feb 18, 2026