CVE-2021-30756

A local attacker may be able to view Now Playing information from the lock screen. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iPadOS 14.6. A privacy issue in Now Playing was addressed with improved permissions.

• https://support.apple.com/en-us/HT212528Vendor Advisory
• https://support.apple.com/en-us/HT212529Vendor Advisory
• https://support.apple.com/en-us/HT212528Vendor Advisory
• https://support.apple.com/en-us/HT212529Vendor Advisory

Published

Sep 8, 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.

• CVE-2021-30749Multiple memory corruption issues were addressed with improv…8.8
• CVE-2021-30750The issue was addressed with improved permissions logic. Thi…5.5
• CVE-2021-30751This issue was addressed with improved data protection. This…5.5
• CVE-2021-30752Processing a maliciously crafted image may lead to arbitrary…7.8
• CVE-2021-30753Processing a maliciously crafted font may result in the disc…5.5
• CVE-2021-30755Processing a maliciously crafted font may result in the disc…6.5
• CVE-2021-30757This issue was addressed by enabling hardened runtime. This …5.5
• CVE-2021-30758A type confusion issue was addressed with improved state han…8.8
• CVE-2021-30759A stack overflow was addressed with improved input validatio…7.8
• CVE-2021-30760An integer overflow was addressed through improved input val…7.8
• CVE-2021-30761A memory corruption issue was addressed with improved state …8.8
• CVE-2021-30762A use after free issue was addressed with improved memory ma…8.8