CVE-2026-20637

MEDIUM 6.2

CVSS Score

6.2

EPSS Score

0.0%

EPSS Percentile

0th

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An app may be able to cause unexpected system termination.

Vendor	apple
Product	ios and ipados
Ecosystems	iOS macOS
Industries	Technology
Published	Mar 25, 2026
Last Updated	Apr 2, 2026

Stay Ahead of the Next One

Get instant alerts for apple ios and ipados

Be the first to know when new medium vulnerabilities affecting apple ios and ipados are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

Apple / iOS and iPadOS

0 < 18.7.7 0 < 26.3

Apple / macOS

0 < 14.8.5 0 < 15.7.5 0 < 26.3

Apple / tvOS

0 < 26.3

Apple / visionOS

0 < 26.3

Apple / watchOS

0 < 26.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

support.apple.com: https://support.apple.com/en-us/126346 support.apple.com: https://support.apple.com/en-us/126348 support.apple.com: https://support.apple.com/en-us/126351 support.apple.com: https://support.apple.com/en-us/126352 support.apple.com: https://support.apple.com/en-us/126353 support.apple.com: https://support.apple.com/en-us/126793 support.apple.com: https://support.apple.com/en-us/126795 support.apple.com: https://support.apple.com/en-us/126796