CVE-2023-40421

Sensitive-data access via undisclosed talagent permissions flaw

Published Oct 25, 2023 · Updated Feb 13, 2025

A permissions flaw in talagent in affected Apple macOS releases allows context-dependent attackers to access sensitive user data. Talagent applies insufficient restrictions when an app requests protected user data; Apple has not disclosed the specific permission check or data class. Execution of an app in a user context is required, and the reported consequence is data disclosure rather than modification or service interruption.

CVSS severity5.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A permissions flaw in talagent in affected Apple macOS releases allows context-dependent attackers to access sensitive user data. Talagent applies insufficient restrictions when an app requests protected user data; Apple has not disclosed the specific permission check or data class. Execution of an app in a user context is required, and the reported consequence is data disclosure rather than modification or service interruption.

The record

CVE
CVE-2023-40421
Published
Oct 25, 2023
Updated
Feb 13, 2025
Vendor
Apple
Product
macOS
Classifications
T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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 <12.7
  2. Affected versionversion=unspecified <13.6
  3. Affected versionversion=unspecified <14.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <12.7; version=unspecified <13.6; version=unspecified <14.1

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data 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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