CVE-2021-1023

Name: CVE-2021-1023
Creator: NVD / NIST
Published: 2021-12-15T19:15:14.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5/10EPSS 0.12%

Last modified Jun 17, 2026

CVE-2021-1023 is a medium-severity vulnerability rated 5/10 on the CVSS scale. In onCreate of RequestIgnoreBatteryOptimizations.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

Description

In onCreate of RequestIgnoreBatteryOptimizations.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-195963373

Metrics

CVSS 3.1

5/10

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

EPSS Probability

0.12%

1.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Google	Android	12.0

References

https://source.android.com/security/bulletin/pixel/2021-12-01Vendor Advisory
https://source.android.com/security/bulletin/pixel/2021-12-01Vendor Advisory

Timeline

Published: Dec 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-1023?

How severe is CVE-2021-1023?

CVE-2021-1023 has a CVSS score of 5/10 (MEDIUM severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-1023?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-1023?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST