CVE-2020-9978

MediumCVSS 4.5/10Last modified Jun 17, 2026

Description

This issue was addressed with improved setting propagation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. An attacker in a privileged network position may be able to unexpectedly alter application state.

Metrics

CVSS 3.1 4.5/10CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Affected software

VendorProductVersions
AppletvOS>= unspecified, < 14.0
ApplewatchOS>= unspecified, < 7.0
AppleiOS and iPadOS>= unspecified, < 14.0
ApplemacOS>= unspecified, < 11.0
ApplemacOS>= unspecified, < 11.1

References

Timeline

Published
Apr 2, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-99795.5A trust issue was addressed by removing a legacy API. This issue is fixed in iOS 14.0 and iPadOS 14.0, tvOS 14.0. An attacker may be able toCVE-2020-99807.8An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10CVE-2020-99817.8A use after free issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes fCVE-2020-99825.5This issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in Apple Music 3.4.0 for Android. A malicCVE-2020-99838.8An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 14.0. Processing maliciously craftedCVE-2020-99847.8An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6,CVE-2020-99857.8A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6CVE-2020-99863.3A file access issue existed with certain home folder files. This was addressed with improved access restrictions. This issue is fixed in macCVE-2020-99874.3An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 14.0. Visiting a malicious CVE-2020-99885.5The issue was addressed with improved deletion. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A local user may be aCVE-2020-99895.5The issue was addressed with improved deletion. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0. A local CVE-2020-99907.8A race condition was addressed with additional validation. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be abl
CVE-2020-9978: Medium severity, CVSS 4.5 | Vulnix