CVE-2023-40439

Location disclosure via insufficient log redaction

Published Jan 10, 2024 · Updated Jun 11, 2025

Information disclosure in Accounts in Apple iOS and iPadOS before 16.6 and macOS before 13.5 allows local users to read sensitive location data. The Accounts component writes log entries without adequately redacting private location data before an app can read them. Exploitation requires a locally running app and user interaction; no integrity or availability effect is reported.

CVSS severity3.3
Low
EPSS probability0.24%
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 Accounts in Apple iOS and iPadOS before 16.6 and macOS before 13.5 allows local users to read sensitive location data. The Accounts component writes log entries without adequately redacting private location data before an app can read them. Exploitation requires a locally running app and user interaction; no integrity or availability effect is reported.

The record

CVE
CVE-2023-40439
Published
Jan 10, 2024
Updated
Jun 11, 2025
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-22, T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 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 <16.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <16.6
Apple · macOSversion=unspecified <13.5

Published CVSS scores

3.3NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
3.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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