ACTIVELY EXPLOITED
CVE-2025-43520: Apple Multiple Products Classic Buffer Overflow Vulnerability
| Vendor | Apple |
|---|---|
| Product | Multiple Products |
| Actively exploited | Yes |
| Added to CISA KEV | 20 Mar 2026 |
| CISA federal deadline | 3 Apr 2026 |
| Weakness (CWE) | CWE-120 |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain a classic buffer overflow vulnerability which could allow a malicious application to cause unexpected system termination or write kernel memory.
SOURCES
Other Apple flaws
- CVE-2024-27834: Apple Multiple Products Improper Authentication Vulnerability
- CVE-2026-86950: Apple Multiple Products Out-of-Bounds Write Vulnerability
- CVE-2026-65400: Apple macOS Improper Authentication Vulnerability
- CVE-2025-43510: Apple Multiple Products Improper Locking Vulnerability
- CVE-2025-31277: Apple Multiple Products Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.