CVE-2025-43520

MEDIUM 5.5

⚠️ CISA KEV

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	apple
Product	ios and ipados
Ecosystems	iOS macOS
Industries	Technology
Published	Dec 12, 2025
Last Updated	Apr 2, 2026

⚠️ Actively Exploited — Act Now

Get instant alerts for apple ios and ipados

This vulnerability is actively exploited in the wild. Set up free real-time alerts so you're first to know about threats like CVE-2025-43520.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

Apple / iOS and iPadOS

0 < 18.7.2 0 < 26.1

Apple / macOS

0 < 14.8.2 0 < 15.7.2 0 < 26.1

Apple / tvOS

0 < 26.1

Apple / visionOS

0 < 26.1

Apple / watchOS

0 < 26.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

support.apple.com: https://support.apple.com/en-us/125632 support.apple.com: https://support.apple.com/en-us/125633 support.apple.com: https://support.apple.com/en-us/125634 support.apple.com: https://support.apple.com/en-us/125635 support.apple.com: https://support.apple.com/en-us/125636 support.apple.com: https://support.apple.com/en-us/125637 support.apple.com: https://support.apple.com/en-us/125638 support.apple.com: https://support.apple.com/en-us/125639 cloud.google.com: https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/ cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520