CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Apple Multiple Products Memory Corruption Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.
Affected products
apple: ipados; apple: iphone os; apple: mac os x; apple: tvos; apple: watchos
References9
- support.apple.com/HT210918 Release NotesVendor Advisory
- support.apple.com/HT210919 Release NotesVendor Advisory
- support.apple.com/HT210920 Release NotesVendor Advisory
- support.apple.com/HT210921 Release NotesVendor Advisory
- support.apple.com/HT210918 Release NotesVendor Advisory
- support.apple.com/HT210919 Release NotesVendor Advisory
- support.apple.com/HT210920 Release NotesVendor Advisory
- support.apple.com/HT210921 Release NotesVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 15% percentile: 97 · as of 11 November 2026
- CWE
- CWE-787
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