CVE-2024-40775

Local information disclosure via code-signing downgrade

Published Jul 29, 2024 · Updated Apr 2, 2026

Information disclosure in Apple macOS allows local users to read sensitive data through an AppleMobileFileIntegrity downgrade. Apple has not disclosed the affected function or how untrusted input causes the downgrade; its advisory states only that added code-signing restrictions prevent it. Exploitation requires a locally run app with low privileges and affects Monterey before 12.7.6, Ventura before 13.6.8, and Sonoma before 14.6.

CVSS severity5.5
Medium
EPSS probability0.28%
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 macOS allows local users to read sensitive data through an AppleMobileFileIntegrity downgrade. Apple has not disclosed the affected function or how untrusted input causes the downgrade; its advisory states only that added code-signing restrictions prevent it. Exploitation requires a locally run app with low privileges and affects Monterey before 12.7.6, Ventura before 13.6.8, and Sonoma before 14.6.

The record

CVE
CVE-2024-40775
Published
Jul 29, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-200
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 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=0 <12.7.6
  2. Affected versionversion=0 <13.6.8
  3. Affected versionversion=0 <14.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · macOSversion=0 <12.7.6; version=0 <13.6.8; version=0 <14.6

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/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.

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

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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