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CVE-2020-6540

26
FAUCET Score

CVE-2020-6540 describes a high-severity buffer overflow vulnerability in Skia, a graphics engine used by Google Chrome prior to version 84.0.4147.105, affecting various Chrome distributions on Debian and Fedora. A remote attacker could exploit this flaw by enticing a user to visit a crafted HTML page, leading to heap corruption. This vulnerability carries a CVSS score of 8.8 (HIGH), indicating a network-based attack with low complexity, requiring user interaction, and potentially resulting in high impact to confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered some community discussion and media coverage, suggesting awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
< 84.0.4147.105CPE 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
1.50%
Probability of exploitation in next 30 days
EPSS Percentile
71.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0150 is in the 70th 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-0:84.0.4147.105-2.el6_10
View patch
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-6540Important

chromium-browser: Heap buffer overflow in Skia

Jul 27, 2020

References

chromereleases.googleblog.com / 2020/07/stable-channel-update-for-desktop_27.html
Release NotesVendor Advisory
crbug.com / 1105720
Permissions RequiredVendor 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