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CVE-2020-6505

30
FAUCET Score

CVE-2020-6505 is a critical use-after-free vulnerability affecting Google Chrome versions prior to 83.0.4103.106, specifically within the speech component. This flaw allows a remote attacker to achieve a sandbox escape by enticing a user to visit a specially crafted HTML page. With a CVSS score of 9.6, it presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and community discussion and media coverage are minimal, suggesting it is not currently under active widespread exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 83.0.4103.106CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 66th percentile among its peer group of 836 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 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-0:83.0.4103.106-1.el6_10
View patch
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-6505Important

chromium-browser: Use after free in speech

Jun 15, 2020

References

chromereleases.googleblog.com / 2020/06/stable-channel-update-for-desktop_15.html
Vendor Advisory
crbug.com / 1081350
Issue TrackingThird Party Advisory
security.gentoo.org / glsa/202007-08
Third Party Advisory