CVE-2023-20938

In binder_transaction_buffer_release of binder.c, there is a possible use after free due to improper input validation. 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-257685302References: Upstream kernel

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.33% chance of exploitation in the next 30 days, 26th percentile

Published

2023-02-28

Updated

2024-08-02

Proof-of-concept exploits (7)

• anansi2safe/CVE-2023-2093813★ · 2026-05-12
• sunofva/FosterFix2★ · 2025-04-05
• 0xAtharv/CVE-2023-20938-Public
• byt3quester/CVE-2023-20938-poc
• jaf0rk/CVE-2023-20938
• 249707737/Android-16-SM7550-Kernel-5.15.178-Exploit-Research1★ · 2026-08-19
• thxa/deep-researcher

References

• CVE Record
• NVD entry

Related

• CVE-2025-40019
• CVE-2022-22706
• CVE-2025-6558
• CVE-2026-11057
• CVE-2026-14382
• CVE-2026-14431