CVE-2020-9959

Severity: low (CVSS 2.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-16 · updated 2026-06-17
Weakness: CWE-667

Description

A lock screen issue allowed access to messages on a locked device. This issue was addressed with improved state management. This issue is fixed in iOS 14.0 and iPadOS 14.0. A person with physical access to an iOS device may be able to view notification contents from the lockscreen.

Affected products

Apple iPadOS: before 14.0 — fixed in 14.0
Apple Iphone Os: before 14.0 — fixed in 14.0

How to fix

Upgrade to a fixed version: Apple iPadOS 14.0; Apple Iphone Os 14.0. Check the vendor advisory for mitigations.

References

http://seclists.org/fulldisclosure/2020/Nov/20
https://support.apple.com/HT211850
http://seclists.org/fulldisclosure/2020/Nov/20
https://support.apple.com/HT211850

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