CVE-2026-20700
Apple Multiple Products
Apple Multiple Buffer Overflow Vulnerability
What it is
Apple iOS, macOS, tvOS, watchOS, and visionOS contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow an attacker with memory write the capability to execute arbitrary code.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor notices and references
- support.apple.com/en-us/126346
- support.apple.com/en-us/126348
- support.apple.com/en-us/126351
- support.apple.com/en-us/126352
- support.apple.com/en-us/126353
- nvd.nist.gov/vuln/detail/CVE-2026-20700
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