CVE-2016-7190
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 · uneditedThe Chakra JavaScript engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-3386, CVE-2016-3389, and CVE-2016-7194.
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 confidenceMemory corruption vulnerability in the Chakra JavaScript engine in Microsoft Edge allows remote attackers to achieve arbitrary code execution or cause denial of service via a specially crafted website containing malicious JavaScript that triggers improper memory handling during script parsing or execution.
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 dataall versionsCVSS 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
- High
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/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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Verify Microsoft Edge is installedOpen Start menu and search for 'Microsoft Edge' or check for the Edge icon on the taskbar. Alternatively, open Run and type 'msedge' to launch it.Affected if Microsoft Edge is present on the system and has not been removed.
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Determine installed Edge versionLaunch Microsoft Edge, type 'about:version' in the address bar, or go to 'msedge://settings/help' to view the version number.Affected if Any unpatched version of Microsoft Edge is installed.
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Confirm security update KB3199135 is not appliedOpen Control Panel > Programs and Features > View installed updates, then search for 'KB3199135' or subsequent cumulative updates containing this fix. Alternatively, check Windows Update history for this specific KB.Affected if The security update KB3199135 (or a later cumulative update containing the fix) is NOT listed as installed.
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Verify Chakra JavaScript engine is enabledOpen Edge Settings > Privacy and services > JavaScript, or type 'about:flags' in the address bar to check if JavaScript execution is enabled.Affected if JavaScript is enabled in Edge (this is the default configuration and required for the vulnerability to be exploitable).
If Microsoft Edge is installed with an unpatched version and the KB3199135 update is absent, the system is vulnerable to this Chakra JavaScript engine flaw.
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.
From vendor dataApply Microsoft security update KB3199135 (or subsequent relevant cumulative update) to resolve the Chakra vulnerability. Until patched, consider restricting or disabling JavaScript execution in untrusted Edge contexts or using alternative browsers for high-risk web browsing.
- Consultation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-7190 — 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-2016-7190 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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- 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
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