Local privilege escalation via VCU race condition
Published Jun 6, 2023 · Updated Jan 7, 2025
A race condition in MediaTek VCU on affected Android 12.0 and Yocto devices allows local users to escalate privileges via memory corruption. Concurrent access to a shared VCU resource is improperly synchronized, and a logic error corrupts memory; MediaTek has not disclosed the specific code locus. Exploitation requires System execution privileges and no user interaction; the published record does not describe the resulting privileged action beyond local escalation.
Summary
What happened
A race condition in MediaTek VCU on affected Android 12.0 and Yocto devices allows local users to escalate privileges via memory corruption. Concurrent access to a shared VCU resource is improperly synchronized, and a logic error corrupts memory; MediaTek has not disclosed the specific code locus. Exploitation requires System execution privileges and no user interaction; the published record does not describe the resulting privileged action beyond local escalation.
The record
- CVE
- CVE-2023-20740
- Published
- Jun 6, 2023
- Updated
- Jan 7, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, CWE-662, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jun 6, 2023CVE publishedPublication date reported by the CVE source.
- Jan 7, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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.
Weakness, pattern, technique
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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