CVE-2014-7539
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 Zhang Zhijun Taiwan Visit 2014-06-25 (aka com.zizizzi) application 1.0 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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 Zhang Zhizizzi Android application version 1.0 fails to validate X.509 certificates from SSL servers, allowing man-in-the-middle attackers to spoof servers and intercept sensitive data by presenting crafted certificates.
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= 1.0CVSS 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
- Adjacent
- Complexity
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:A/AC:M/Au:N/C:P/I:P/A:P
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 if the Zhang Zhijun Taiwan Visit app is installedUse 'adb shell pm list packages' or check installed apps on the Android device to locate the package name for 'Zhang Zhijun Taiwan Visit 2014 06 25' or 'Zhang Zhizizzi'Affected if The package is present on the device
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Check the installed version of the appUse 'adb shell dumpsys package <package_name>' to retrieve the versionName and versionCode for the installed applicationAffected if The version is 1.0
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Verify the app makes network connectionsMonitor network traffic using a proxy or tcpdump while using the app to confirm it communicates over HTTPSAffected if The app transmits sensitive data over HTTPS without proper certificate validation
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Inspect SSL implementation in the appUse a decompiler (such as jadx or apktool) to examine the app's code for TrustManager, hostnameVerifier, or certificate validation logicAffected if No certificate chain validation, no hostname verification, or insecure TrustManager implementation is found in the code
The user is affected if the Zhang Zhijun Taiwan Visit 2014 06 25 app version 1.0 is installed and makes network connections without proper SSL certificate validation.
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 dataImplement proper SSL certificate validation in the Android app, including chain-of-trust verification, hostname validation, and proper TrustManager configuration.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-7539 — 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-2014-7539 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