CVE-2021-0947

Name: CVE-2021-0947
Creator: NVD / NIST
Published: 2022-08-24T14:15:09.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2021-0947 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The method PVRSRVBridgeTLDiscoverStreams allocates puiStreamsInt on the heap, fills the contents of the buffer via TLServerDiscoverStreamsKM, and then copies the buffer to userspace. The method TLServerDiscoverStreamsKM may fail for several reasons including invalid sizes. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

The method PVRSRVBridgeTLDiscoverStreams allocates puiStreamsInt on the heap, fills the contents of the buffer via TLServerDiscoverStreamsKM, and then copies the buffer to userspace. The method TLServerDiscoverStreamsKM may fail for several reasons including invalid sizes. If this method fails the buffer will be left uninitialized and despite the error will still be copied to userspace. Kernel leak of uninitialized heap data with no privs required.Product: AndroidVersions: Android SoCAndroid ID: A-236838960

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.27%

18.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-909

Affected Software

Vendor	Product	Versions
Google	Android	All versions

References

https://source.android.com/security/bulletin/2022-08-01Vendor Advisory
https://source.android.com/security/bulletin/2022-08-01Vendor Advisory

Timeline

Published: Aug 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-0947?

How severe is CVE-2021-0947?

CVE-2021-0947 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2021-0947?

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-2021-0947?

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

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Source: NVD / NIST