CVE-2023-40422: Apple macOS · An app may be able to cause a denial-of-service
Affects Apple macOSSource CVE Database V5
Not known to be exploited.
Data as of 26 Oct 2026, 06:26 UTC
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
Disclosed: evidence found.
CVE published 26 Sep 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-26.
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.