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VulnerabilityPublished Updated

CVE-2023-40422: Apple macOS · An app may be able to cause a denial-of-service

Affects Apple macOSSource CVE Database V5

0

Not known to be exploited.

Data as of 26 Oct 2026, 17:16 UTC

Severity
Medium

Rated Medium by the CNA (apple) · No CVSS score from NVD or the CNA

EPSS
0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Sep 2023

  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

Apply the official fix by upgrading to macOS Sonoma 14, where the issue has been resolved through improved memory handling.

Description

CVE-2023-40422 is a vulnerability in Apple macOS that could allow an application to cause a denial-of-service condition. The issue was addressed by Apple through improved memory handling and is fixed in macOS Sonoma 14.

References

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