CVE-2023-20942
MEDIUMAndroid - Unauthenticated Audio Recording Without Microphone Privacy Indicator
Title source: llmDescription
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 (4)
Core 4
Core References
Patch
https://android.googlesource.com/platform/frameworks/av/+/770b45c3c1619cf4008b89e7a0f4392bf2224bbc
Patch
https://android.googlesource.com/platform/frameworks/av/+/b072419650958c41c87d2baa572dc2fe6da9ea6b
Patch
https://android.googlesource.com/platform/frameworks/av/+/bae3b00a5873d1562679a1289fd8490178cfe064
Patch, Vendor Advisory
https://source.android.com/security/bulletin/2023-07-01
Scores
CVSS v3
5.5
EPSS
0.0007
EPSS Percentile
0.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-326
Status
published
Products (3)
google/android
12.0
google/android
12.1
google/android
13.0
Published
Jul 13, 2023
Tracked Since
Feb 18, 2026