CVE-2018-8298
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 · uneditedA remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
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 confidenceThis is a memory corruption vulnerability in the ChakraCore JavaScript scripting engine that allows remote code execution through improper handling of objects in memory. The vulnerability exists in how ChakraCore manages memory when processing JavaScript objects, enabling an attacker to execute arbitrary code via malicious web content or scripts.
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< 1.10.1CVSS 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:3.1/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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Locate ChakraCore DLL fileSearch for chakra.dll or Chakracore.dll on the system. Common locations include the application bin folder, System32, or subdirectories of installed software using ChakraCore. Use: Get-ChildItem -Path "C:\" -Recurse -Filter "chakra*.dll" -ErrorAction SilentlyContinueAffected if ChakraCore DLL file is found on the system
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Determine ChakraCore versionRight-click the located chakra.dll file, select Properties, go to the Details tab, and record the File Version value. If multiple DLLs exist, check each one.Affected if File version is present but less than 1.10.1
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Confirm application uses ChakraCoreReview application documentation, dependencies, or use Process Explorer to identify processes loading chakra.dll. Check if the vulnerable software uses ChakraCore for JavaScript execution.Affected if Any application or service loads and uses ChakraCore for JavaScript processing
Environment is affected if any installed ChakraCore version is below 1.10.1 and JavaScript execution via ChakraCore is enabled in running applications.
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 · scoped1.10.1
Update ChakraCore to the latest patched version. If immediate patching is not feasible, restrict or disable JavaScript execution in vulnerable applications and implement network-level filtering to block malicious scripts.
ChakraCore 1.10.1
- 1. Identify the current version of ChakraCore in use by checking project dependencies or runtime version
- 2. If version is below 1.10.1, upgrade the ChakraCore library to version 1.10.1 or later
- 3. Rebuild and redeploy any applications or services that depend on ChakraCore
- 4. Verify the upgrade was successful by checking the new ChakraCore version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,416.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-8298 — 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-2018-8298 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
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