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Mallory
Medium

Out-of-bounds write in Apple IOHIDFamily

IdentifiersCVE-2025-43302CWE-787· Out-of-bounds Write

CVE-2025-43302 is an out-of-bounds write vulnerability in Apple IOHIDFamily. Apple states that the issue was addressed through improved bounds checking. Successful exploitation by a local app may trigger memory corruption in the affected component and cause unexpected system termination. The advisory does not provide function-level details or indicate code execution; the documented impact is system instability/termination caused by a malicious app.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

A malicious local application may be able to cause unexpected system termination, resulting in a denial-of-service condition affecting the device. Based on the available advisory text, the confirmed impact is system crash/termination rather than privilege escalation or arbitrary code execution.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround is provided in the available content. Practical mitigation prior to patching is to restrict installation and execution of untrusted or unnecessary applications, especially on managed devices, since Apple describes exploitation as requiring an app. Standard application control and rapid OS patching are the primary mitigations supported by the available information.

Remediation

Patch, then assume compromise.

Apply the vendor fixes provided by Apple. Apple reports this issue is fixed in iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Sequoia 15.7, macOS Sonoma 14.8, macOS Tahoe 26, tvOS 26, visionOS 26, and watchOS 26.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AppleIpadosoperating_system
AppleIphone Osoperating_system
AppleMacosoperating_system
AppleTvosoperating_system
AppleVisionosoperating_system
AppleWatchosoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

Community discussion across Reddit, Mastodon, and other social sources.