CVE-2026-20620

HIGH 7.7

CVSS Score

7.7

EPSS Score

0.0%

EPSS Percentile

0th

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.

Vendor	apple
Product	macos
Ecosystems	macOS iOS
Industries	Technology
Published	Feb 11, 2026
Last Updated	Apr 2, 2026

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Affected Versions

Apple / macOS

0 < 14.8.4 0 < 15.7.4 0 < 26.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

support.apple.com: https://support.apple.com/en-us/126348 support.apple.com: https://support.apple.com/en-us/126349 support.apple.com: https://support.apple.com/en-us/126350