CVE-2020-3843

HIGH

iPhone OS < 12.4.7 and watchOS < 5.3.7 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211169
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211176

Scores

CVSS v3 8.8
EPSS 0.0350
EPSS Percentile 87.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (2)
apple/iphone_os < 12.4.7
apple/watchos < 5.3.7
Published Feb 27, 2020
Tracked Since Feb 18, 2026