CVE-2025-43454Network attack vector

Persistent device-lock failure via Siri state mishandling

Published Nov 4, 2025 · Updated Nov 4, 2025

State-management failure in Siri in Apple iOS and iPadOS before 26.1 allows remote attackers to prevent a device from locking. Apple identifies flawed Siri state management but does not disclose the state transition or condition that leaves device locking persistently disabled. No authentication or user interaction is required under CISA's published assessment, and the bounded consequence is persistent failure of the device lock.

CVSS severity7.5
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

State-management failure in Siri in Apple iOS and iPadOS before 26.1 allows remote attackers to prevent a device from locking. Apple identifies flawed Siri state management but does not disclose the state transition or condition that leaves device locking persistently disabled. No authentication or user interaction is required under CISA's published assessment, and the bounded consequence is persistent failure of the device lock.

The record

CVE
CVE-2025-43454
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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 <26.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <26.1

Published CVSS scores

7.5CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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