CVE-2023-21245
HIGHAndroid - Local Privilege Escalation via KeyguardSecurityContainerController Logic Error
Title source: llmDescription
In showNextSecurityScreenOrFinish of KeyguardSecurityContainerController.java, there is a possible way to access the lock screen during device setup 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 (2)
Core 2
Core References
Patch
https://android.googlesource.com/platform/frameworks/base/+/a33159e8cb297b9eee6fa5c63c0e343d05fad622
Patch, Vendor Advisory
https://source.android.com/security/bulletin/2023-07-01
Scores
CVSS v3
7.8
EPSS
0.0009
EPSS Percentile
0.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-863
Status
published
Products (4)
google/android
11.0
google/android
12.0
google/android
13.0
google/android
13.1
Published
Jul 13, 2023
Tracked Since
Feb 18, 2026