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CVE-2020-6551

42
FAUCET Score

CVE-2020-6551 describes a use-after-free vulnerability in Google Chrome's WebXR component, affecting versions prior to 84.0.4147.125, as well as various Debian and Fedora distributions. This high-severity vulnerability (CVSS 8.8) allows a remote attacker to potentially exploit heap corruption through a crafted HTML page, leading to high impacts on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, including a $10,000 reward from Google for its discovery.

Impacted Technologies

VendorProductVersion(s)CPE
< 84.0.4147.125CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
29.29%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.2929 is in the 98th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:84.0.4147.135-1.el6_10
View patch
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-6551Important

chromium-browser: Use after free in WebXR

Aug 10, 2020

References

packetstormsecurity.com / files/159611/Chrome-XRSystem-FocusedFrameChanged-and-FocusController-NotifyFocusChangedObservers-Use-After-Free.html
Third Party AdvisoryVDB Entry
chromereleases.googleblog.com / 2020/08/stable-channel-update-for-desktop.html
Release NotesVendor Advisory
crbug.com / 1107815
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT
security.gentoo.org / glsa/202101-30
Third Party Advisory
debian.org / security/2021/dsa-4824
Third Party Advisory