CVE-2021-39621

Name: CVE-2021-39621
Creator: NVD / NIST
Published: 2022-01-14T20:15:10.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.13%

Last modified Jun 17, 2026

CVE-2021-39621 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In sendLegacyVoicemailNotification of LegacyModeSmsHandler.java, there is a possible permissions bypass due to an unsafe PendingIntent. This could lead to local escalation of privilege with User execution privileges needed. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

Description

In sendLegacyVoicemailNotification of LegacyModeSmsHandler.java, there is a possible permissions bypass due to an unsafe PendingIntent. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-185126319

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.13%

2.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions
Google	Android	9.0
Google	Android	10.0
Google	Android	11.0
Google	Android	12.0

References

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

Timeline

Published: Jan 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39621?

How severe is CVE-2021-39621?

CVE-2021-39621 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39621?

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-2021-39621?

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

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Source: NVD / NIST