CVE-2019-6215

HIGH

Safari < 12.0.3 - Remote Code Execution via Type Confusion

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-6215. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a type confusion vulnerability in WebKit's JavaScriptCore (CVE-2019-6215) by manipulating property attributes to achieve an out-of-bounds read via a CustomGetterSetter object linked to RegExp. The exploit leverages JIT compiler behavior to expose internal objects to JavaScript.

Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.1.3, tvOS 12.1.2, Safari 12.0.3, iTunes 12.9.3 for Windows, iCloud for Windows 7.10. Processing maliciously crafted web content may lead to arbitrary code execution.

Exploits (1)

exploitdb WORKING POC
by Google Security Research · javascriptdosmultiple
https://www.exploit-db.com/exploits/46448

This PoC exploits a type confusion vulnerability in WebKit's JavaScriptCore (CVE-2019-6215) by manipulating property attributes to achieve an out-of-bounds read via a CustomGetterSetter object linked to RegExp. The exploit leverages JIT compiler behavior to expose internal objects to JavaScript.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: WebKit JavaScriptCore (Safari, other WebKit-based browsers)
No auth needed
Prerequisites: Target must be using a vulnerable version of WebKit
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/106691
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201903-12
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT209443
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT209451
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT209449
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT209450
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/46448/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3889-1/
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT209447

Scores

CVSS v3 8.8
EPSS 0.0975
EPSS Percentile 94.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-843
Status published
Products (8)
apple/icloud < 7.10
apple/iphone_os < 12.1.3
apple/itunes < 12.9.3
apple/safari < 12.0.3
apple/tvos < 12.1.2
apple/watchos < 5.1.3
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
Published Mar 05, 2019
Tracked Since Feb 18, 2026