Vulnerability Intelligence Report
Apple Multiple Products Classic Buffer Overflow Vulnerability
CVE-2025-43520
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
5.5
MEDIUM
Exploitability:1.9
Impact Score:3.6
EPSS Probability:0.43%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-120 ↗CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apple | iOS and iPadOS | 0 < 18.7.2 (affected), 0 < 26.1 (affected) |
| Apple | macOS | 0 < 14.8.2 (affected), 0 < 15.7.2 (affected), 0 < 26.1 (affected) |
| Apple | tvOS | 0 < 26.1 (affected) |
| Apple | visionOS | 0 < 26.1 (affected) |
| Apple | watchOS | 0 < 26.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apple Inc. · Vendor · USA |
| Reserved | 2025-04-16T15:27:21 |
| Published | 2025-12-12T20:56:25 |
| Last Updated | 2026-09-21T16:47:43 |
Community Chatter & Buzz