CVE-2023-20942

medium

Description

In openMmapStream of AudioFlinger.cpp, there is a possible way to record audio without displaying the microphone privacy indicator due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

References

https://source.android.com/security/bulletin/2023-07-01

https://android.googlesource.com/platform/frameworks/av/+/bae3b00a5873d1562679a1289fd8490178cfe064

https://android.googlesource.com/platform/frameworks/av/+/b072419650958c41c87d2baa572dc2fe6da9ea6b

https://android.googlesource.com/platform/frameworks/av/+/770b45c3c1619cf4008b89e7a0f4392bf2224bbc

Details

Source: Mitre, NVD

Published: 2023-07-13

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.0001