CVE-2025-43520
Medium 5.5 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Apple Multiple Products Classic Buffer Overflow Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- 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
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.
Metrics
- CVSS 3.1
-
5.5 (MEDIUM)
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% (percentile: 37) as of 1 November 2026
- CWE
- CWE-120
Affected products
apple: ipados; apple: iphone os; apple: macos; apple: tvos; apple: visionos; apple: watchos
References
- https://support.apple.com/en-us/125632 Release NotesVendor Advisory
- https://support.apple.com/en-us/125633 Release NotesVendor Advisory
- https://support.apple.com/en-us/125634 Release NotesVendor Advisory
- https://support.apple.com/en-us/125635 Release NotesVendor Advisory
- https://support.apple.com/en-us/125636 Release NotesVendor Advisory
- https://support.apple.com/en-us/125637 Release NotesVendor Advisory
- https://support.apple.com/en-us/125638 Release NotesVendor Advisory
- https://support.apple.com/en-us/125639 Release NotesVendor Advisory
- https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-… Technical Description
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025… US Government Resource