CVE-2017-2547

HIGH

Safari < 10.1.1 - Remote Code Execution via WebKit Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-2547. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a signed comparison vulnerability in JavaScriptCore's IntegerCheckCombiningPhase, allowing out-of-bounds access to a Uint32Array by using a negative index. The issue arises during JIT optimization where bound checks are incorrectly removed.

Description

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 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/42190

This PoC exploits a signed comparison vulnerability in JavaScriptCore's IntegerCheckCombiningPhase, allowing out-of-bounds access to a Uint32Array by using a negative index. The issue arises during JIT optimization where bound checks are incorrectly removed.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: WebKit JavaScriptCore (Safari)
No auth needed
Prerequisites: Target must execute the malicious JavaScript code
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038487
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98474
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207804
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201706-15
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42190/
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207798

Scores

CVSS v3 8.8
EPSS 0.5612
EPSS Percentile 98.2%
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 (2)
apple/iphone_os < 10.3.1
apple/safari < 10.1
Published May 22, 2017
Tracked Since Feb 18, 2026