CVE-2025-43533

Process crash via unchecked HID input bounds

Published Dec 17, 2025 · Updated Dec 17, 2025

Memory corruption in Multi-Touch in iOS, iPadOS, macOS, tvOS, visionOS, and watchOS before 26.2 allows attackers to crash a process. Multi-Touch fails to validate bounds while processing data from an attached HID device, permitting memory corruption that terminates the affected process. Exploitation requires the target to process input from a malicious HID device and affects availability only; no data access or code execution is reported.

CVSS severity5.7
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Multi-Touch in iOS, iPadOS, macOS, tvOS, visionOS, and watchOS before 26.2 allows attackers to crash a process. Multi-Touch fails to validate bounds while processing data from an attached HID device, permitting memory corruption that terminates the affected process. Exploitation requires the target to process input from a malicious HID device and affects availability only; no data access or code execution is reported.

The record

CVE
CVE-2025-43533
Published
Dec 17, 2025
Updated
Dec 17, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-20, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <26.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <26.2
Apple · visionOSversion=unspecified <26.2
Apple · tvOSversion=unspecified <26.2
Apple · macOSversion=unspecified <26.2
Apple · watchOSversion=unspecified <26.2

Published CVSS scores

5.7CISA ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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