5.5
Medium
Exploited
CVE-2025-43520 Apple Multiple Products Classic Buffer Overflow Vulnerability
Active exploitation observed
· CISA KEV catalogue
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.
Ransomware campaigns
Not observed so far
Weakness
CWE-120
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| macOS 26.1 | earliest → < 26.1 | 26.1 |
| macOS 15.7 | earliest → < 15.7.2 | 15.7.2 |
| macOS 14.8 | earliest → < 14.8.2 | 14.8.2 |
| tvOS 26.1 | earliest → < 26.1 | 26.1 |
| visionOS 26.1 | earliest → < 26.1 | 26.1 |
| watchOS 26.1 | earliest → < 26.1 | 26.1 |
| iOS and iPadOS 26.1 | earliest → < 26.1 | 26.1 |
| iOS and iPadOS 18.7 | earliest → < 18.7.2 | 18.7.2 |
References
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified
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