CVE-2021-0342

Name: CVE-2021-0342
Creator: NVD / NIST
Published: 2021-01-11T21:15:13.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2021-0342 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. In tun_get_user of tun.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges required. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In tun_get_user of tun.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges required. User interaction is not required for exploitation. Product: Android; Versions: Android kernel; Android ID: A-146554327.

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

0.17%

7.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Google	Android	All versions

References

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

Timeline

Published: Jan 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-0342?

How severe is CVE-2021-0342?

CVE-2021-0342 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-0342?

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-2021-0342?

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

Scan your code now

Source: NVD / NIST