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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Analyzed - product-security@apple.com
- Published
- 2025-12-12
- Last modified
- 2026-10-07
- Known exploited (CISA KEV)
- since 2026-03-20, action due 2026-04-03: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Weaknesses
- CWE-120
Affected products
- Ios And Ipados (Apple)
- Ipados (Apple)
- Iphone Os (Apple)
- Macos (Apple)
- Tvos (Apple)
- Visionos (Apple)
- Watchos (Apple)
References
- https://support.apple.com/en-us/125632
- https://support.apple.com/en-us/125633
- https://support.apple.com/en-us/125634
- https://support.apple.com/en-us/125635
- https://support.apple.com/en-us/125636
- https://support.apple.com/en-us/125637
- https://support.apple.com/en-us/125638
- https://support.apple.com/en-us/125639
- https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520
