CVE-2026-20700
Multiple Buffer Overflow in Apple Multiple Products. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 12 February 2026.
- Product
- Apple Multiple Products
- Added to CISA's catalog
- Federal fix-by date
- Ransomware
- No known use in ransomware campaigns
- Vendor advisories
- Sources
- CISA’s catalog, NVD entry
CISA’s description.
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.
More from Apple this year.
- CVE-2024-27834 Improper Authentication, added
- CVE-2026-86950 Out-of-Bounds Write, added
- CVE-2026-65400 Improper Authentication, added
- CVE-2025-43520 Classic Buffer Overflow, added
- CVE-2025-43510 Improper Locking, added
- CVE-2025-31277 Buffer Overflow, added
- CVE-2023-43000 Use-After-Free, added
- CVE-2023-41974 Use-After-Free, added
Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.