CVE-2024-23228

Locked Notes disclosure via incorrect state management

Published Apr 24, 2024 · Updated Apr 2, 2026

Information disclosure in Apple iOS and iPadOS before 17.3 allows local users to access unexpectedly unlocked Locked Notes content. Apple attributes the issue to state management in Notes but has not disclosed the specific state transition or operation that leaves content unlocked. Published assessments require low privileges and no user interaction; the reported consequence is limited to unauthorized reading of note content.

CVSS severity3.3
Low
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Apple iOS and iPadOS before 17.3 allows local users to access unexpectedly unlocked Locked Notes content. Apple attributes the issue to state management in Notes but has not disclosed the specific state transition or operation that leaves content unlocked. Published assessments require low privileges and no user interaction; the reported consequence is limited to unauthorized reading of note content.

The record

CVE
CVE-2024-23228
Published
Apr 24, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS
Classifications
CWE-200, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2026Record 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=17.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · iOSversion=17.3
Apple · iOS and iPadOSversion=0 <17.3
Apple · iPadOSversion=17.3

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

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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