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CVE-2023-21116

MEDIUM
6.7
CVSS Score
Published: May 15, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:31 AM UTC
1 product affected across 1 vendorAndroid

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

In verifyReplacingVersionCode of InstallPackageHelper.java, there is a possible way to downgrade system apps below system image version due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-256202273

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

PatchVendor Advisory
Source: [email protected]
https://source.android.com/security/bulletin/2023-05-01

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-OtherCWE-863

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