CVE-2017-8121
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 UMA product with software V200R001 and V300R001 has an information leak vulnerability. An attacker could exploit them to obtain some sensitive information, causing information leak.
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 · moderate confidenceInformation disclosure vulnerability in Huawei UMA product software versions V200R001 and V300R001 allows unauthenticated attackers to potentially obtain sensitive information through unknown attack vector.
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= v200r001= v300r001CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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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Confirm Huawei UMA is installedInventory your systems for Huawei UMA product software. Check system inventory, installed software lists, or network documentation for evidence of Huawei UMA deployment.Affected if Huawei UMA software is found on any system
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Identify installed UMA versionUse Huawei's standard version lookup method for the UMA product, such as checking the product web interface version display, running 'display version' command via management CLI, or reviewing product documentation/diagnostics.Affected if Unable to determine the version number through available methods
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Compare version against CVE-affected releasesVerify if the installed version is exactly V200R001 or V300R001. Note that other versions (newer or older) may have different vulnerability status.Affected if Installed version is V200R001 or V300R001 exactly
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Assess network exposureDetermine if the UMA management interface is accessible from unauthenticated network segments. Check firewall rules, ACLs, and network zone configurations surrounding the UMA system.Affected if UMA interface is reachable from untrusted networks without authentication barriers
The environment is affected if Huawei UMA versions V200R001 or V300R001 are installed and the product interface is network-accessible to potential attackers.
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 vendor-supplied patches for V200R001 and V300R001; restrict network access to UMA systems and monitor for unauthorized access attempts.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-8121 — 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-2017-8121 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