Vulnerability Intelligence Report
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
CVE-2025-43300
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12, iOS 18.6.2 and iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, macOS Ventura 13.7.8. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:19.97%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds Write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apple | iOS and iPadOS | 0 < 15.8.5 (affected), 0 < 16.7.12 (affected), 0 < 18.6.2 (affected) |
| Apple | iPadOS | 0 < 17.7.10 (affected) |
| Apple | macOS | 0 < 13.7.8 (affected), 0 < 14.7.8 (affected), 0 < 15.6.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apple Inc. · Vendor · USA |
| Reserved | 2025-04-16T15:24:37 |
| Published | 2025-08-21T00:27:21 |
| Last Updated | 2026-04-02T18:17:25 |
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