CVE-2015-7844
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 · uneditedHuawei FusionAccess with software V100R005C10,V100R005C20 could allow attackers to craft and send a malformed HDP protocol packet to cause the virtual cloud desktop to be displaying an error and not usable.
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 confidenceHuawei FusionAccess V100R005C10 and V100R005C20 contain a vulnerability in the HDP (Huawei Desktop Protocol) implementation. Attackers can send malformed HDP protocol packets to cause the virtual cloud desktop to display an error and become unavailable, resulting in a denial of service condition. The vulnerability is exploitable remotely without authentication.
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= v100r005c10= v100r005c20CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 FusionAccess installationCheck if Huawei FusionAccess is installed on the system by searching for FusionAccess-related processes, services, or installed packages. On Linux, use 'ps aux | grep -i fusion' or check installed packages. On Windows, check Programs and Features or services.msc for FusionAccess entries.Affected if FusionAccess software is found on the system
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Determine FusionAccess versionLocate the FusionAccess version information. Check installation directories, About dialogs, or use command-line tools specific to Huawei FusionAccess to retrieve the exact version number (v100r005c10 or v100r005c20).Affected if The installed version is exactly v100r005c10 or v100r005c20
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Verify HDP service statusIdentify if the HDP (Huawei Desktop Protocol) service is running or enabled. Check for HDP-related processes listening on network ports (typically ports 2000-20004 range for Huawei desktop protocol). Use 'netstat -an | grep -E "200[0-9]"' or similar to find listening HDP ports.Affected if HDP service is running and listening on network ports
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Assess network exposureDetermine if the HDP service is directly accessible from untrusted networks. Review firewall rules, network segmentation, and ACLs controlling access to the FusionAccess server and its HDP ports. Check if the service is bound to 0.0.0.0 or an exposed interface.Affected if HDP ports are accessible from networks outside the trusted internal network
A system is affected if it runs FusionAccess version v100r005c10 or v100r005c20 with the HDP service enabled and exposed to network access.
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 the vendor-provided patch or upgrade to a supported version of FusionAccess. Implement network segmentation and access controls to limit exposure of the FusionAccess infrastructure to untrusted networks.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-7844 — 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-2015-7844 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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