CVE-2021-39670

Name: CVE-2021-39670
Creator: NVD / NIST
Published: 2022-05-10T20:15:08.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2021-39670 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In setStream of WallpaperManager.java, there is a possible way to cause a permanent DoS due to improper input validation. This could lead to local denial of service with User execution privileges needed. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

In setStream of WallpaperManager.java, there is a possible way to cause a permanent DoS due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12LAndroid ID: A-204087139

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.19%

8.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Google	Android	12.0
Google	Android	12.1

References

https://source.android.com/security/bulletin/2022-05-01Patch, Vendor Advisory
https://source.android.com/security/bulletin/2022-05-01Patch, Vendor Advisory

Timeline

Published: May 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39670?

How severe is CVE-2021-39670?

CVE-2021-39670 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39670?

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-2021-39670?

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

Scan your code now

Source: NVD / NIST