CVE-2023-20928

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-26 · updated 2026-06-17
Weakness: CWE-416

Description

In binder_vma_close of binder.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-254837884References: Upstream kernel

Affected products

Android: all versions

References

http://packetstormsecurity.com/files/170855/Android-Binder-VMA-Management-Security-Issues.html
https://source.android.com/security/bulletin/2023-01-01
http://packetstormsecurity.com/files/170855/Android-Binder-VMA-Management-Security-Issues.html
https://source.android.com/security/bulletin/2023-01-01

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