CVE-2021-1790

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Processing a maliciously crafted font may lead to arbitrary code execution.

• CWE-125

• https://support.apple.com/en-us/HT212147Vendor Advisory
• https://support.apple.com/en-us/HT212147Vendor Advisory

Published

Apr 2, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

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• CVE-2021-1785An out-of-bounds read was addressed with improved input vali…7.8
• CVE-2021-1786A logic issue was addressed with improved state management. …5.5
• CVE-2021-1787Multiple issues were addressed with improved logic. This iss…7.8
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• CVE-2021-1792An out-of-bounds read was addressed with improved bounds che…8.8
• CVE-2021-1793This issue was addressed with improved checks. This issue is…7.8
• CVE-2021-1794An out-of-bounds read was addressed with improved input vali…9.8
• CVE-2021-1795An out-of-bounds write was addressed with improved input val…9.8
• CVE-2021-1796An out-of-bounds write was addressed with improved input val…9.8