CVE-2020-3891

LOW

iPadOS < 13.4 - Unauthenticated Message Response Bypass via Locked Device

Title source: llm
STIX 2.1

Description

A logic issue was addressed with improved state management. This issue is fixed in iOS 13.4 and iPadOS 13.4, watchOS 6.2. A person with physical access to a locked iOS device may be able to respond to messages even when replies are disabled.

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT211102
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/HT211103

Scores

CVSS v3 2.4
EPSS 0.0030
EPSS Percentile 21.8%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Details

Status published
Products (3)
apple/ipad_os < 13.4
apple/iphone_os < 13.4
apple/watchos < 6.2
Published Apr 01, 2020
Tracked Since Feb 18, 2026