CVE-2025-43520 KEV
5.5
MEDIUM · CVSS 3.1 · EPSS 0.4% (pctl 34)
Patch first
On CISA KEV — known exploited in the wild, due 2026-04-03.
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.
Scoring
| CVSS | 5.5 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.43% — more likely to be exploited than 34% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | yes — remediate by 2026-04-03 |
| Public exploit | none known |
| Published | 2025-12-12 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Apple Multiple Products Classic Buffer Overflow Vulnerability |
|---|---|
| Added | 2026-03-20 |
| Due | 2026-04-03 |
| Vendor / product | Apple / Multiple Products |
| Ransomware use | none reported |
Affected (6)
| Vendor | Product |
|---|---|
| apple | ipados |
| apple | iphone os |
| apple | macos |
| apple | tvos |
| apple | visionos |
| apple | watchos |
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
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