CVE-2019-8661

CRITICAL

macOS < 10.14.6 - Remote Code Execution via Use-After-Free

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-8661. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a heap overflow in NSURL deserialization via CarbonCore's unsafe string handling, leading to memory corruption. It requires Frida for injection and targets macOS via iMessage, causing a crash in soagent without user interaction.

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Mojave 10.14.6. A remote attacker may be able to cause arbitrary code execution.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Google Security Research · textdosmacos

https://www.exploit-db.com/exploits/47207

View Code ZIP pw:eip

This exploit demonstrates a heap overflow in NSURL deserialization via CarbonCore's unsafe string handling, leading to memory corruption. It requires Frida for injection and targets macOS via iMessage, causing a crash in soagent without user interaction.

Classification

Working Poc 90%

Attack Type

Dos

Complexity

Moderate

Reliability

Reliable

Target: macOS (CarbonCore framework in NSURL deserialization)

No auth needed

Prerequisites: Frida installed · Target's phone number/email for iMessage · Access to the provided exploit files

MITRE ATT&CK

T1203 - Exploitation for Client Execution T1190 - Exploit Public-Facing Application

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://support.apple.com/HT210348

Scores

CVSS v3 9.8

EPSS 0.0951

EPSS Percentile 94.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-416

Status published

Products (1)

apple/mac_os_x < 10.14.6

Published Dec 18, 2019

Tracked Since Feb 18, 2026