What’s Vulnerable › Vulnerabilities

CVE-2020-9923

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% 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-787

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, watchOS 6.2.8. A malicious application may be able to execute arbitrary code with system privileges.

Affected products

• Apple iPadOS: before 13.6 — fixed in 13.6
• Apple Iphone Os: before 13.6 — fixed in 13.6
• Apple watchOS: before 6.2.8 — fixed in 6.2.8

How to fix

Upgrade to a fixed version: Apple iPadOS 13.6; Apple Iphone Os 13.6; Apple watchOS 6.2.8. Check the vendor advisory for mitigations.

References

• https://support.apple.com/HT211288
• https://support.apple.com/HT211291
• https://support.apple.com/HT211288
• https://support.apple.com/HT211291

Get alerted when CVE-2020-9923 or the next vulnerability affects your stack