Local privilege escalation via out-of-bounds write
Published Dec 16, 2022 · Updated Apr 18, 2025
An out-of-bounds write in Google LWIS in the Android kernel allows local users with System execution privileges to gain elevated privileges. Public records identify memory corruption in LWIS but do not disclose the affected function, buffer, or unchecked operation that writes out of bounds. Exploitation requires local System execution privileges and no user interaction; the published consequence is privilege escalation within the device.
Summary
What happened
An out-of-bounds write in Google LWIS in the Android kernel allows local users with System execution privileges to gain elevated privileges. Public records identify memory corruption in LWIS but do not disclose the affected function, buffer, or unchecked operation that writes out of bounds. Exploitation requires local System execution privileges and no user interaction; the published consequence is privilege escalation within the device.
The record
- CVE
- CVE-2022-20600
- Published
- Dec 16, 2022
- Updated
- Apr 18, 2025
- Vendor
- Product
- LWIS
- Classifications
- CWE-787, T1404
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 16, 2022CVE publishedPublication date reported by the CVE source.
- Apr 18, 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?
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- Affected versionversion=Android kernel
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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