CVE-2021-0308

Name: CVE-2021-0308
Creator: NVD / NIST
Published: 2021-01-11T22:15:13.173+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2021-0308 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. In ReadLogicalParts of basicmbr.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

In ReadLogicalParts of basicmbr.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.1, Android-9, Android-10, Android-11, Android-8.0; Android ID: A-158063095.

Metrics

CVSS 3.1

6.8/10

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

EPSS Probability

0.44%

34.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Google	Android	8.0
Google	Android	8.1
Google	Android	9.0
Google	Android	10.0
Google	Android	11.0
Debian	Debian Linux	9.0

References

https://lists.debian.org/debian-lts-announce/2021/02/msg00010.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202105-03Third Party Advisory
https://source.android.com/security/bulletin/2021-01-01Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00010.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202105-03Third Party Advisory
https://source.android.com/security/bulletin/2021-01-01Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-0308?

How severe is CVE-2021-0308?

CVE-2021-0308 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-0308?

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-2021-0308?

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

Scan your code now

Source: NVD / NIST