CVE-2024-40827
Description
The issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.7.6, macOS Sonoma 14.6, macOS Ventura 13.6.8. An app may be able to overwrite arbitrary files.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
macOS allows apps to overwrite arbitrary files due to insufficient permission checks; patched in Monterey 12.7.6, Sonoma 14.6, Ventura 13.6.8.
Root
Cause CVE-2024-40827 stems from insufficient permission checks in macOS, allowing an app to overwrite arbitrary files. The bug was addressed with improved checks in the July 2024 security updates [1][2][3][4].
Exploitation
An attacker would need to have an app installed on the target system. No additional authentication or network access is required beyond local app execution. The vulnerability can be exploited locally by a malicious or compromised application [1][2][3][4].
Impact
Successful exploitation enables an app to overwrite arbitrary files, potentially leading to data corruption, privilege escalation, or persistent device compromise. The vulnerability could allow an attacker to modify critical system files or user data [1][2][3][4].
Mitigation
Apple has released patches for macOS Monterey 12.7.6, macOS Sonoma 14.6, and macOS Ventura 13.6.8. Users should update to these versions immediately [1][2][3][4]. No workarounds are listed; installing the security update is the only recommended mitigation.
AI Insight generated on May 20, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
4- Range: <14.6
- Range: <13.6.8
- Range: <12.7.6
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
12- seclists.org/fulldisclosure/2024/Jul/18nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2024/Jul/19nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2024/Jul/20nvdMailing ListThird Party Advisory
- support.apple.com/en-us/HT214118nvdRelease NotesVendor Advisory
- support.apple.com/en-us/HT214119nvdRelease NotesVendor Advisory
- support.apple.com/en-us/HT214120nvdRelease NotesVendor Advisory
- support.apple.com/en-us/120910nvd
- support.apple.com/en-us/120911nvd
- support.apple.com/en-us/120912nvd
- support.apple.com/kb/HT214118nvd
- support.apple.com/kb/HT214119nvd
- support.apple.com/kb/HT214120nvd
News mentions
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