CVE-2025-43520
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Mar 20, 2026
- US federal agencies must remediate it by Apr 3, 2026 (BOD 22-01)
- First attack observed 95 days after disclosure
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Source: CISA KEV · Sep 8, 2026 Apr 19, 2026 Mar 20, 2026 Mar 18, 2026 Mar 18, 2026
CVSS score5.5 / 10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness type (CWE)CWE-120
Vendorsapple
Affected products
| Vendors | Product | Versions |
|---|---|---|
| apple | ipados | < 18.7.2 |
| apple | iphone os | < 18.7.2 |
| apple | macos | < 14.8.2 |
| apple | tvos | < 26.1 |
| apple | visionos | < 26.1 |
| apple | watchos | < 26.1 |
Related articles
This product uses the NVD API but is not endorsed or certified by the NVD.