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VulnerabilityPublished Updated

CVE-2023-42878: Apple macOS · An app may be able to access sensitive user data

Affects Apple macOSSource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium · fixed in 10.1 : update Apple macOS when convenient.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 10.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Feb 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

European organizations should prioritize updating all Apple devices to macOS Sonoma 14.1, iOS 17.1, iPadOS 17.1, and watchOS 10.1 or later to apply the fix. Beyond patching, organizations should enforce strict app permission policies to limit the installation and execution of untrusted or unnecessary local applications that could exploit this vulnerability. Employ endpoint detection and response (EDR) solutions capable of monitoring local app behaviors and access to system logs to detect suspicious activity. Implement device management policies via MDM solutions to control software updates and app installations centrally. Educate users about the risks of installing untrusted apps and the importance of timely OS updates. Additionally, audit and restrict access to logs and sensitive data on devices where possible. Regularly review privacy and security configurations on Apple devices to ensure compliance with organizational policies and regulatory requirements.

Description

A privacy issue was addressed with improved private data redaction for log entries. This issue is fixed in watchOS 10.1, macOS Sonoma 14.1, iOS 17.1 and iPadOS 17.1. An app may be able to access sensitive user data.

References

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