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ChromeWeb browser · Google

CVE-2020-6547

MEDIUM · 6.5 CVSS v3.1 Published 2020-09-21
Fix available
A fix is available. Upgrade to 84.0.4147.125 or later.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Incorrect security UI in media in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially obtain sensitive information via a crafted HTML page.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is an incorrect security UI vulnerability in Google Chrome's media component prior to version 84.0.4147.125. The flaw allowed a crafted HTML page to potentially obtain sensitive information by exploiting incorrect security UI indicators related to media handling, likely by misleading users about the security status of media content or improperly displaying security context.

MitigationUpgrade Google Chrome to version 84.0.4147.125 or later to patch this security UI vulnerability in the media component.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ChromeWeb browser
Affected:< 84.0.4147.125
Debian LinuxOperating system
Affected:= 10.0
FedoraOperating system
Affected:= 33

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check installed Google Chrome version
    Open Chrome, navigate to chrome://settings/help, or run 'google-chrome --version' or 'chrome --version' from command line
    Affected if Version is below 84.0.4147.125
  2. Check operating system version
    Run 'cat /etc/os-release' on Linux systems to identify the distribution and version
    Affected if Running Debian 10.0 or Fedora 33 with an affected Chrome version
  3. Verify Chrome is the configured default browser for media
    Attempt to play media files (audio/video) in Chrome and observe whether the security indicator (lock icon, HTTPS indicator) displays incorrectly or is missing
    Affected if Media content plays without proper security UI indicators or displays misleading security context

You are affected if Google Chrome version is below 84.0.4147.125 and you use the browser to handle media content, with Debian 10.0 or Fedora 33 being specifically listed as affected platforms.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 84.0.4147.125 or later
Fixed in 84.0.4147.125
Interim mitigation

Upgrade Google Chrome to version 84.0.4147.125 or later to patch this security UI vulnerability in the media component.

Fix this in Chrome Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-6547 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data