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CVE-2020-6478

18
FAUCET Score

CVE-2020-6478 is a medium-severity vulnerability in Google Chrome prior to version 83.0.4103.61, affecting products like Debian and Fedora. It allowed a remote attacker to spoof security UI elements through a crafted HTML page due to an inappropriate full-screen implementation. The attack requires user interaction (UI:R) but has low attack complexity (AC:L) and could lead to high integrity impacts (I:H), though confidentiality and availability are not affected. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available, despite moderate community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 83.0.4103.61CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 85th percentile among its peer group of 26,236 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

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

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:83.0.4103.97-1.el6_10
View patch
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-6478Moderate

chromium-browser: Inappropriate implementation in full screen

May 19, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-06/msg00034.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-06/msg00038.html
Third Party Advisory
chromereleases.googleblog.com / 2020/05/stable-channel-update-for-desktop_19.html
Release NotesVendor Advisory
crbug.com / 1037730
Permissions RequiredVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OQYH5OK7O4BU6E37WWG5SEEHV65BFSGR
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/WLFZ5N4EK6I4ZJP5YSKLLVN3ELXEB4XT
security.gentoo.org / glsa/202006-02
Third Party Advisory
debian.org / security/2020/dsa-4714
Third Party Advisory