CVE-2021-0377

Name: CVE-2021-0377
Creator: NVD / NIST
Published: 2021-03-10T16:15:15.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.12%

Last modified Jun 17, 2026

CVE-2021-0377 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In DeltaPerformer::Write of delta_performer.cc, there is a possible use of untrusted input due to improper input validation. This could lead to a local bypass of defense in depth protections with no additional execution privileges needed. EPSS estimates a 0.12% chance of exploitation in the next 30 days.

Description

In DeltaPerformer::Write of delta_performer.cc, there is a possible use of untrusted input due to improper input validation. This could lead to a local bypass of defense in depth protections with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-160800689

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.12%

2.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Google	Android	11.0

References

https://source.android.com/security/bulletin/pixel/2021-03-01Vendor Advisory
https://source.android.com/security/bulletin/pixel/2021-03-01Vendor Advisory

Timeline

Published: Mar 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-0377?

How severe is CVE-2021-0377?

CVE-2021-0377 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-0377?

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-2021-0377?

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

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Source: NVD / NIST