CVE-2020-9926

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, iCloud for Windows 7.20, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
AppleiOS and iPadOS>= unspecified, < 13.6
ApplemacOS>= unspecified, < 10.15
ApplemacOS>= unspecified, < 13.4
ApplemacOS>= unspecified, < 6.2
ApplemacOS>= unspecified, < 7.20

References

Timeline

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

Related CVEs from 2020

CVE-2020-99277.8A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6. An application may beCVE-2020-99287.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. An applicatioCVE-2020-99297.1A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A local user may be abCVE-2020-99307.1An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 CVE-2020-99317.5A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6. A remote attacker mCVE-2020-99328.8A memory corruption issue was addressed with improved validation. This issue is fixed in Safari 13.0.1, iOS 13.1 and iPadOS 13.1, tvOS 13. PCVE-2020-99333.3An authorization issue was addressed with improved state management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6CVE-2020-99345.5An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 13.CVE-2020-99354.3A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.6. A user may be unexpectedly loggedCVE-2020-99367.8An 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-2020-99377.8An 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-2020-99387.8An 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-2020-9926: High severity, CVSS 7.8 | Vulnix