Medium

Process crash via malicious HID device in Apple macOS/iOS/iPadOS

IdentifiersCVE-2025-43424CWE-125

CVE-2025-43424 is an Apple vulnerability affecting macOS Tahoe 26.1, iOS 26.1, and iPadOS 26.1. According to the provided advisory text, the flaw was addressed with improved bounds checks. A malicious HID device can trigger an unexpected process crash, indicating improper validation of bounds while processing input from a Human Interface Device. The available information does not identify the specific component or function involved.

For your environment

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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.

Successful exploitation allows an attacker using a malicious HID device to cause an unexpected process crash on the affected Apple platform. Based on the provided information, the demonstrated impact is denial of service or loss of availability of the targeted process; no evidence is provided here of code execution, privilege escalation, or data disclosure.

Mitigation

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

Until patches are applied, reduce exposure to untrusted or unknown HID peripherals. Limit physical access to affected devices, avoid connecting untrusted USB or other HID-capable accessories, and use only trusted peripherals in controlled environments. Additional mitigation details are not provided in the supplied content.

Remediation

Patch, then assume compromise.

Apply the vendor fixes in macOS Tahoe 26.1, iOS 26.1, and iPadOS 26.1, where Apple states the issue was resolved through improved bounds checks.

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

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

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app

zdnet zero dayNews

Jan 24, 2026

About the security content of iOS 26.1 and iPadOS 26.1 - Apple Support

Bounds-checking issue where a malicious HID device can trigger a process crash.

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.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

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 activity2