CVE-2020-6463

Name: CVE-2020-6463
Creator: NVD / NIST
Published: 2020-05-21T04:15:11.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.89%

Last modified Jun 17, 2026

CVE-2020-6463 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.. EPSS estimates a 2.89% chance of exploitation in the next 30 days.

Description

Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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

2.89%

85.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Google	Chrome	< 81.0.4044.122	—
Fedoraproject	Fedora	31	—
Fedoraproject	Fedora	32	—
Canonical	Ubuntu Linux	16.04	—
Canonical	Ubuntu Linux	18.04	—
Canonical	Ubuntu Linux	20.04	—
Debian	Debian Linux	9.0	—
Debian	Debian Linux	10.0	—
Opensuse	Backports Sle	15.0	Sp1
Opensuse	Leap	15.1	—
Opensuse	Leap	15.2	—

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00008.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00011.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.htmlMailing List, Third Party Advisory
https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_21.htmlRelease Notes, Vendor Advisory
https://crbug.com/1065186Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00027.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00006.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQYH5OK7O4BU6E37WWG5SEEHV65BFSGR/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLFZ5N4EK6I4ZJP5YSKLLVN3ELXEB4XT/
https://security.gentoo.org/glsa/202007-60Third Party Advisory
https://security.gentoo.org/glsa/202007-64Third Party Advisory
https://usn.ubuntu.com/4443-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4714Third Party Advisory
https://www.debian.org/security/2020/dsa-4736Third Party Advisory
https://www.debian.org/security/2020/dsa-4740Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00008.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00011.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.htmlMailing List, Third Party Advisory
https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_21.htmlRelease Notes, Vendor Advisory
https://crbug.com/1065186Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00027.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00006.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQYH5OK7O4BU6E37WWG5SEEHV65BFSGR/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WLFZ5N4EK6I4ZJP5YSKLLVN3ELXEB4XT/
https://security.gentoo.org/glsa/202007-60Third Party Advisory
https://security.gentoo.org/glsa/202007-64Third Party Advisory
https://usn.ubuntu.com/4443-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4714Third Party Advisory
https://www.debian.org/security/2020/dsa-4736Third Party Advisory
https://www.debian.org/security/2020/dsa-4740Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-6463?

Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

How severe is CVE-2020-6463?

CVE-2020-6463 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.89% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6463?

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-2020-6463?

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

Scan your code now

Source: NVD / NIST