ChromeWeb browser · Google
CVE-2019-5870
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 · uneditedUse after free in media in Google Chrome prior to 77.0.3865.75 allowed a remote attacker to potentially perform a sandbox escape 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 · high confidenceA use-after-free vulnerability in the media component of Google Chrome versions prior to 77.0.3865.75 allows a remote attacker to exploit freed memory through a specially crafted HTML page, potentially escaping the browser's sandbox isolation and executing arbitrary code.
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
< 77.0.3865.75CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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 checksWork through these to decide whether this CVE applies to you.
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Determine installed Chrome versionOpen Chrome and navigate to chrome://version, or run 'google-chrome --version' on Linux, or check Help > About Google Chrome on Windows/MacAffected if The displayed version is lower than 77.0.3865.75
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Confirm media component is enabledThe media component is built into Chrome by default; no additional configuration is typically required. This check is satisfied if Chrome runs media content.Affected if The media component is present and functional in the browser (default state)
You are affected if your Chrome version is lower than 77.0.3865.75 and the browser's media component is operational (the default state).
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scoped77.0.3865.75
Update Google Chrome to version 77.0.3865.75 or later to remediate this vulnerability. Organizations should deploy the update enterprise-wide and verify complete coverage.
Chrome 77.0.3865.75 or later (any newer stable release)
- Open Google Chrome browser
- Navigate to Settings > Help > About Google Chrome (or enter chrome://settings/help in the address bar)
- Chrome will automatically check for available updates
- If version 77.0.3865.75 or later is available, click 'Update Google Chrome' to download and install it
- Restart the browser to complete the update process
- Verify the update by returning to About Google Chrome and confirming the version number is 77.0.3865.75 or higher
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Chrome
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-5870 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-5870 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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