CVE-2024-40848Network attack vector

Sensitive-information disclosure via code-signing downgrade

Published Sep 16, 2024 · Updated Apr 2, 2026

A code-signing downgrade in AppleMobileFileIntegrity in Apple macOS allows attackers to read sensitive information via unspecified vectors. Apple identifies the affected component and downgrade operation but has not disclosed which validation path accepts the downgraded signing state. NVD assesses that no privileges or user interaction are required, and the reported consequence is limited to sensitive-information disclosure.

CVSS severity7.5
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A code-signing downgrade in AppleMobileFileIntegrity in Apple macOS allows attackers to read sensitive information via unspecified vectors. Apple identifies the affected component and downgrade operation but has not disclosed which validation path accepts the downgraded signing state. NVD assesses that no privileges or user interaction are required, and the reported consequence is limited to sensitive-information disclosure.

The record

CVE
CVE-2024-40848
Published
Sep 16, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <13.7
  2. Affected versionversion=0 <14.7
  3. Affected versionversion=0 <15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <13.7; version=0 <14.7; version=0 <15

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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