CVE-2017-2478

HIGH

iPhone OS < 10.3, macOS < 10.12.4, tvOS < 10.2, watchOS < 3.2 - Race Condition in Kernel

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-2478. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a use-after-free (UAF) vulnerability in the MacOS/iOS kernel due to improper locking in the necp_open syscall. The PoC spawns multiple threads to rapidly close file descriptors, triggering a race condition that can lead to kernel memory corruption.

Description

An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves the "Kernel" component. A race condition allows attackers to execute arbitrary code in a privileged context via a crafted app.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · cdosmultiple
https://www.exploit-db.com/exploits/41794

This exploit demonstrates a use-after-free (UAF) vulnerability in the MacOS/iOS kernel due to improper locking in the necp_open syscall. The PoC spawns multiple threads to rapidly close file descriptors, triggering a race condition that can lead to kernel memory corruption.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Racy
Target: MacOS/iOS kernel (tested on MacOS 10.12.3)
No auth needed
Prerequisites: Access to a vulnerable MacOS/iOS system
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/41794/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97137
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207601
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207615
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038138
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207602
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207617

Scores

CVSS v3 7.0
EPSS 0.0348
EPSS Percentile 87.9%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-362
Status published
Products (4)
apple/iphone_os < 10.2.1
apple/mac_os_x < 10.12.3
apple/tvos < 10.1.1
apple/watchos < 3.1.3
Published Apr 02, 2017
Tracked Since Feb 18, 2026