CVE-2023-40529

Calendar disclosure via incomplete VoiceOver redaction

Published Jan 10, 2024 · Updated Nov 4, 2025

Information disclosure in Accessibility in Apple iOS and iPadOS before 17 allows physically proximate attackers to read private calendar data. The VoiceOver accessibility path presents calendar content without adequately redacting sensitive information. Physical access to an affected iPhone or iPad is required; Apple reports only disclosure of private calendar information.

CVSS severity2.4
Low
EPSS probability0.21%
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 Accessibility in Apple iOS and iPadOS before 17 allows physically proximate attackers to read private calendar data. The VoiceOver accessibility path presents calendar content without adequately redacting sensitive information. Physical access to an affected iPhone or iPad is required; Apple reports only disclosure of private calendar information.

The record

CVE
CVE-2023-40529
Published
Jan 10, 2024
Updated
Nov 4, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
T1533
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2024CVE 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 <17

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <17

Published CVSS scores

2.4CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
2.4NVDCVSS:3.1/AV:P/AC:L/PR:N/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.

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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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1533Data from Local System

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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