CVE-2017-2523

CRITICAL

iPhone OS < 10.3.2, macOS < 10.12.5, tvOS < 10.2.1, watchOS < 3.2.2 - Remote Code Execution in Foundation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-2523. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit leverages a deserialization vulnerability in NSUnarchiver to manipulate NSBuiltinCharacterSet with an uncontrolled index, leading to potential memory corruption or arbitrary code execution. The provided Python script generates a malicious serialized object to trigger the vulnerability.

Description

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. macOS before 10.12.5 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the "Foundation" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via crafted data.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdosmultiple
https://www.exploit-db.com/exploits/42050

This exploit leverages a deserialization vulnerability in NSUnarchiver to manipulate NSBuiltinCharacterSet with an uncontrolled index, leading to potential memory corruption or arbitrary code execution. The provided Python script generates a malicious serialized object to trigger the vulnerability.

Classification
Working Poc 90%
Attack Type
Deserialization
Complexity
Moderate
Reliability
Reliable
Target: macOS 10.12.3 (16D32)
No auth needed
Prerequisites: Access to a vulnerable macOS system · Ability to deliver a malicious serialized object
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207797
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98584
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207800
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42050/
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207798
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207801

Scores

CVSS v3 9.8
EPSS 0.1148
EPSS Percentile 95.5%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (4)
apple/iphone_os < 10.3.2
apple/mac_os_x < 10.12.5
apple/tvos < 10.2.1
apple/watchos < 3.2.2
Published May 22, 2017
Tracked Since Feb 18, 2026