CVE-2016-10587
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 · uneditedwasdk is a toolkit for creating WebAssembly modules. wasdk downloads binary resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested binary with an attacker controlled binary if the attacker is on the network or positioned in between the user and the remote server.
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 confidenceThe wasdk toolkit downloads binary resources over unencrypted HTTP, allowing man-in-the-middle attackers to intercept and replace the binaries with malicious code. Since the toolkit does not verify the integrity of downloaded resources, an attacker positioned on the network can inject arbitrary code leading to potential remote code 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 data<= 1.0.54CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/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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Identify wasdk installationSearch your project dependencies for the wasdk or wasdk-toolkit package. Check package.json, package-lock.json, or similar dependency manifest files for an entry named 'wasdk' or 'wasdk-toolkit'.Affected if The wasdk package is listed in dependencies with version 1.0.54 or lower.
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Verify wasdk versionIf wasdk is found, extract the installed version number from your dependency file. Compare this version against the affected range: any version <= 1.0.54 is vulnerable.Affected if The installed version is 1.0.54 or any earlier version.
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Locate HTTP download URLsSearch your project for HTTP URLs (http://) used in connection with wasdk functionality. Inspect configuration files, build scripts, or any code that handles binary resource downloads within the wasdk module.Affected if Binary resources are fetched over unencrypted HTTP (http://) rather than HTTPS.
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Check for integrity verificationInspect the wasdk configuration or download implementation for cryptographic integrity checks such as checksums (SHA-256, MD5), signatures, or other verification mechanisms applied to downloaded binaries before execution.Affected if No integrity verification (checksums, signatures) is performed on downloaded binaries.
Your environment is affected if wasdk version 1.0.54 or lower is installed AND binary resources are downloaded over HTTP without any integrity verification mechanism.
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 dataReplace all HTTP URLs with HTTPS to enable transport encryption, and implement cryptographic integrity verification (e.g., checksums, signatures) for all downloaded binaries before execution.
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-10587 — 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-2016-10587 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
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