Kernel code execution via ppp out-of-bounds write
Published Dec 15, 2022 · Updated Apr 21, 2025
Out-of-bounds write in Apple's macOS ppp component allows attackers to execute arbitrary code with kernel privileges via a crafted app. The ppp component performs an out-of-bounds write during memory handling, but Apple has not disclosed the affected routine or input. Execution of the attacker-controlled app requires user interaction; successful exploitation runs code in the kernel and can compromise the system.
Summary
What happened
Out-of-bounds write in Apple's macOS ppp component allows attackers to execute arbitrary code with kernel privileges via a crafted app. The ppp component performs an out-of-bounds write during memory handling, but Apple has not disclosed the affected routine or input. Execution of the attacker-controlled app requires user interaction; successful exploitation runs code in the kernel and can compromise the system.
The record
- CVE
- CVE-2022-42840
- Published
- Dec 15, 2022
- Updated
- Apr 21, 2025
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 15, 2022CVE publishedPublication date reported by the CVE source.
- Apr 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <11.7
- Affected versionversion=unspecified <12.6
- Affected versionversion=unspecified <13.1
- Affected versionversion=unspecified <15.7
- Affected versionversion=unspecified <16.2
What conditions does exploitation require?
What is affected?
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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