CVE-2018-4089

HIGH

Apple tvOS < 11.2.5 - Remote Code Execution via WebKit Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-4089. PoCs published by Google Security Research.

AI-analyzed exploit summary This is a use-after-free vulnerability in WebKit's SVGPropertyTearOff, where a pointer to freed memory is dereferenced due to vector resizing. The PoC triggers the vulnerability via SVG animation manipulation, leading to a heap-use-after-free condition.

Description

An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is affected. tvOS before 11.2.5 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldosmultiple
https://www.exploit-db.com/exploits/43937

This is a use-after-free vulnerability in WebKit's SVGPropertyTearOff, where a pointer to freed memory is dereferenced due to vector resizing. The PoC triggers the vulnerability via SVG animation manipulation, leading to a heap-use-after-free condition.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: WebKit (Revision 225572 on OSX)
No auth needed
Prerequisites: Target must be using a vulnerable version of WebKit · Victim must visit a malicious webpage or open a crafted HTML file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208462
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040266
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208465
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040265
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43937/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102778
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040267
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208475
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208463

Scores

CVSS v3 8.8
EPSS 0.0298
EPSS Percentile 86.9%
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-119
Status published
Products (4)
apple/apple_tv < 11.2.5
apple/iphone_os < 11.2.5
apple/mac_os_x < 10.13.3
apple/safari < 11.0.3
Published Apr 03, 2018
Tracked Since Feb 18, 2026