dbcve.org
ChromeWeb browser · Google

CVE-2019-5777

MEDIUM · 6.5 CVSS v3.0 Published 2019-02-19
Fix available
A fix is available. Upgrade to 72.0.3626.81 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 handling of a confusable character in Omnibox in Google Chrome prior to 72.0.3626.81 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted domain name.

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 · high confidence

Google Chrome's Omnibox (URL bar) failed to properly handle confusable Unicode characters (homoglyphs) in domain names prior to version 72.0.3626.81. Attackers could register domains using characters that visually resemble legitimate domain characters (e.g., Cyrillic letters mimicking Latin), causing Chrome to display a spoofed URL in the address bar while actually navigating to a malicious site.

MitigationUpdate Google Chrome to version 72.0.3626.81 or later. Organizations should ensure browser patch management processes include this update to prevent URL spoofing attacks.

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:< 72.0.3626.81
Enterprise Linux DesktopOperating system
Affected:= 6.0
Enterprise Linux ServerOperating system
Affected:= 6.0
Enterprise Linux WorkstationOperating system
Affected:= 6.0
Debian LinuxOperating system
Affected:= 9.0
FedoraOperating system
Affected:= 29= 30

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
None
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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 Google Chrome version on Windows or Mac
    Click the three-dot menu > Help > About Google Chrome, or navigate to chrome://version in the address bar. Note the version number displayed.
    Affected if The displayed version is less than 72.0.3626.81 (e.g., 71.x or earlier)
  2. Check Google Chrome version on RHEL/Fedora Linux
    Open a terminal and run: rpm -q google-chrome-stable
    Affected if The output shows a version string less than 72.0.3626.81 (e.g., google-chrome-stable-71.0.3578.126) or the package is not found (indicating Chrome may not be installed)
  3. Check Google Chrome version on Debian Linux
    Open a terminal and run: dpkg -l | grep -i chrome
    Affected if The output shows a version less than 72.0.3626.81 or no Chrome package is listed as installed
  4. Verify Chromium browser version if used instead of Chrome
    Navigate to chrome://version or run chromium --version in the terminal
    Affected if The Chromium version is less than 72.0.3626.81
  5. Confirm Omnibox displays international domain names
    Visit a test site with non-ASCII characters in the domain (e.g., a site using Cyrillic or other Unicode scripts) and observe whether the URL bar renders these characters visibly
    Affected if The browser displays the punycode or Unicode representation of the domain in a way that could be confused with a legitimate Latin-character domain

You are affected if Google Chrome or Chromium is installed with a version lower than 72.0.3626.81, as this version introduced the fix for homograph URL spoofing in the Omnibox.

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 72.0.3626.81 or later
Fixed in 72.0.3626.81
Interim mitigation

Update Google Chrome to version 72.0.3626.81 or later. Organizations should ensure browser patch management processes include this update to prevent URL spoofing attacks.

Fix this in Chrome Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2019-5777 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2019-5777 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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