Lockscreen bypass via biometric authentication failure
Published Jan 24, 2023 · Updated Apr 2, 2025
Authentication bypass in the Pixel 6a fingerprint scanner allows physically proximate attackers to bypass the lockscreen and gain privileges. Google has not published the affected function or the operation that incorrectly accepts biometric authentication. Exploitation requires physical access, needs no user interaction or prior execution privileges, and yields local privilege escalation beyond the lockscreen.
Summary
What happened
Authentication bypass in the Pixel 6a fingerprint scanner allows physically proximate attackers to bypass the lockscreen and gain privileges. Google has not published the affected function or the operation that incorrectly accepts biometric authentication. Exploitation requires physical access, needs no user interaction or prior execution privileges, and yields local privilege escalation beyond the lockscreen.
The record
- CVE
- CVE-2023-20924
- Published
- Jan 24, 2023
- Updated
- Apr 2, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-287
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 24, 2023CVE publishedPublication date reported by the CVE source.
- Apr 2, 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.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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