CVE-2020-6555

Name: CVE-2020-6555
Creator: NVD / NIST
Published: 2020-09-21T20:15:14.43+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.6/10EPSS 2.16%

Last modified Jun 17, 2026

CVE-2020-6555 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. Out of bounds read in WebGL in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.. EPSS estimates a 2.16% chance of exploitation in the next 30 days.

Description

Out of bounds read in WebGL in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.

Metrics

CVSS 3.1

7.6/10

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

EPSS Probability

2.16%

79.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Google	Chrome	< 84.0.4147.125
Debian	Debian Linux	10.0
Fedoraproject	Fedora	33

References

https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1105202Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT/
https://security.gentoo.org/glsa/202101-30Third Party Advisory
https://www.debian.org/security/2021/dsa-4824Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1123Exploit, Technical Description, Third Party Advisory
https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1105202Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT/
https://security.gentoo.org/glsa/202101-30Third Party Advisory
https://www.debian.org/security/2021/dsa-4824Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1123Exploit, Technical Description, Third Party Advisory

Timeline

Published: Sep 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6555?

Out of bounds read in WebGL in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.

How severe is CVE-2020-6555?

CVE-2020-6555 has a CVSS score of 7.6/10 (HIGH severity). The EPSS model estimates a 2.16% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6555?

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-2020-6555?

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

Scan your code now

Source: NVD / NIST