CVE-2021-39675

Name: CVE-2021-39675
Creator: NVD / NIST
Published: 2022-02-11T18:15:10.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 5.93%

Last modified Jun 17, 2026

CVE-2021-39675 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In GKI_getbuf of gki_buffer.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. EPSS estimates a 5.93% chance of exploitation in the next 30 days.

Description

In GKI_getbuf of gki_buffer.cc, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-205729183

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

5.93%

92.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Google	Android	12.0

References

https://source.android.com/security/bulletin/2022-02-01Vendor Advisory
https://source.android.com/security/bulletin/2022-02-01Vendor Advisory

Timeline

Published: Feb 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39675?

How severe is CVE-2021-39675?

CVE-2021-39675 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.93% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39675?

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-2021-39675?

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

Scan your code now

Source: NVD / NIST