CVE-2021-30900
Apple iOS, iPadOS, and macOS
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
What it is
Apple GPU drivers, included in iOS, iPadOS, and macOS, contain an out-of-bounds write vulnerability that may allow a malicious application to execute code with kernel privileges.
What to do
Apply updates per vendor instructions.
Vendor notices and references
- support.apple.com/en-us/HT21286, https://support.apple.com/en-us/HT212868, https://support
- nvd.nist.gov/vuln/detail/CVE-2021-30900
Description and required action as published by CISA. Full record at NVD.
Other Apple entries on the list
- Multiple Products Apple Multiple Products Improper Authentication Vulnerability CVE-2024-27834 · Nov 4, 2026
- Multiple Products Apple Multiple Products Out-of-Bounds Write Vulnerability CVE-2026-86950 · Sep 29, 2026
- macOS Apple macOS Improper Authentication Vulnerability CVE-2026-65400 · Aug 18, 2026
- Multiple Products Apple Multiple Products Classic Buffer Overflow Vulnerability CVE-2025-43520 · Mar 20, 2026
- Multiple Products Apple Multiple Products Improper Locking Vulnerability CVE-2025-43510 · Mar 20, 2026
- Multiple Products Apple Multiple Products Buffer Overflow Vulnerability CVE-2025-31277 · Mar 20, 2026