CVE-2025-43520A memory corruption issue was addressed with improved memory handling.
Updated under an hour ago ()
Does this affect you?
It affects Apple iOS and iPadOS and 6 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 20, 2026; federal agencies had to remediate by Apr 3, 2026. Treat that date as your deadline.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-120
- Known exploited
- Added to CISA KEV Mar 20, 2026; federal remediation due Apr 3, 2026Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 0.43% (percentile 35)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple iOS and iPadOS apple:ios_and_ipados (from the name) | before 18.7.2; before 26.1 | CNA record |
Apple macOS apple:macos (from the name) | before 14.8.2; before 15.7.2; before 26.1 | CNA record |
Apple tvOS apple:tvos (from the name) | before 26.1 | CNA record |
Apple visionOS apple:visionos (from the name) | before 26.1 | CNA record |
Apple watchOS apple:watchos (from the name) | before 26.1 | CNA record |
apple ipados apple:ipados | before 18.7.2; 26.0 | NVD |
apple iphone_os apple:iphone_os | before 18.7.2; 26.0 | NVD |
apple macos apple:macos | from 14.0 before 14.8.2; from 15.0 before 15.7.2; 26.0 | NVD |
apple tvos apple:tvos | before 26.1 | NVD |
apple visionos apple:visionos | before 26.1 | NVD |
apple watchos apple:watchos | before 26.1 | NVD |
References
- https://support.apple.com/en-us/125632release-notes, vendor-advisory
- https://support.apple.com/en-us/125633release-notes, vendor-advisory
- https://support.apple.com/en-us/125634release-notes, vendor-advisory
- https://support.apple.com/en-us/125635release-notes, vendor-advisory
- https://support.apple.com/en-us/125636release-notes, vendor-advisory
- https://support.apple.com/en-us/125637release-notes, vendor-advisory
- https://support.apple.com/en-us/125638release-notes, vendor-advisory
- https://support.apple.com/en-us/125639release-notes, vendor-advisory
- https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/technical-description
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.