Register for the AI for Security Summit: Join Figma, Perplexity & Wiz
Wiz
Vulnerability DatabaseCVE-2020-3914

CVE-2020-3914: 
macOS vulnerability analysis and mitigation

Overview

A memory initialization vulnerability (CVE-2020-3914) was discovered in Apple's kernel component, affecting iOS 13.4, iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, and watchOS 6.2. The vulnerability was discovered by pattern-f (@pattern_F_) of WaCai and was patched by Apple in March 2020 (Apple Support).

Technical details

The vulnerability stems from a memory initialization issue in the kernel that could allow an application to read restricted memory. Apple addressed this security flaw by implementing improved memory handling mechanisms (Apple Support).

Impact

If exploited, this vulnerability could allow a malicious application to access and read restricted memory areas, potentially exposing sensitive information (Apple Support).

Exploitability

The vulnerability affects multiple Apple operating systems including iOS 13.4, iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, and watchOS 6.2. While the vulnerability allows reading restricted memory, there are no reports of this vulnerability being exploited in the wild (Apple Support).

Mitigation and workarounds

Apple has addressed this vulnerability by releasing security updates for all affected systems. Users should update to iOS 13.4, iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, or watchOS 6.2 depending on their device (Apple Support).

Additional resources

Source: This report was generated using AI

Related macOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-86917HIGH7.8
  • macOS logomacOS
  • Kernel
NoYesSep 14, 2026
CVE-2026-86924MEDIUM5.5
  • macOS logomacOS
  • MobileAccessoryUpdater
NoYesSep 14, 2026
CVE-2026-86910MEDIUM5.5
  • macOS logomacOS
  • APFS
NoYesSep 14, 2026
CVE-2026-86902MEDIUM5.5
  • macOS logomacOS
  • NSDocument
NoYesSep 14, 2026
CVE-2026-86891LOW3.5
  • macOS logomacOS
  • Core Bluetooth
NoYesSep 14, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo