CVE-2021-0557

Name: CVE-2021-0557
Creator: NVD / NIST
Published: 2021-06-22T11:15:08.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2021-0557 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In setRange of ABuffer.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution with no additional execution privileges needed. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

In setRange of ABuffer.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-179046129

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.67%

47.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Google	Android	11.0

References

https://source.android.com/security/bulletin/pixel/2021-06-01Vendor Advisory
https://source.android.com/security/bulletin/pixel/2021-06-01Vendor Advisory

Timeline

Published: Jun 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-0557?

How severe is CVE-2021-0557?

CVE-2021-0557 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2021-0557?

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-2021-0557?

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

Scan your code now

Source: NVD / NIST