CVE-2026-20621

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. An app may be able to cause unexpected system termination or corrupt kernel memory.

• CWE-119

• https://support.apple.com/en-us/126346Release Notes, Vendor Advisory
• https://support.apple.com/en-us/126347Release Notes, Vendor Advisory
• https://support.apple.com/en-us/126348Release Notes, Vendor Advisory
• https://support.apple.com/en-us/126349Release Notes, Vendor Advisory
• https://support.apple.com/en-us/126350Release Notes, Vendor Advisory
• https://support.apple.com/en-us/126353Release Notes, Vendor Advisory

Published

Feb 11, 2026

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.

• CVE-2026-20616An out-of-bounds write issue was addressed with improved bou…8.8
• CVE-2026-20617A race condition was addressed with improved state handling.…7
• CVE-2026-20618An issue was addressed with improved handling of temporary f…5.5
• CVE-2026-20619A logging issue was addressed with improved data redaction. …5.5
• CVE-2026-2062A vulnerability was identified in Open5GS up to 2.7.6. This …7.5
• CVE-2026-20620An out-of-bounds read issue was addressed with improved inpu…7.7
• CVE-2026-20622A privacy issue was addressed with improved handling of temp…7.5
• CVE-2026-20623A permissions issue was addressed by removing the vulnerable…5.5
• CVE-2026-20624An injection issue was addressed with improved validation. T…5.5
• CVE-2026-20625A parsing issue in the handling of directory paths was addre…5.5
• CVE-2026-20626This issue was addressed with improved checks. This issue is…7.8
• CVE-2026-20627An issue existed in the handling of environment variables. T…5.5