CVE-2019-5298
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 · uneditedThere is an improper authentication vulnerability in some Huawei AP products before version V200R009C00SPC800. Due to the improper implementation of authentication for the serial port, an attacker could exploit this vulnerability by connecting to the affected products and running a series of commands.
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 confidenceImproper authentication implementation in the serial port interface of Huawei AP products allows attackers with serial port access to bypass authentication and execute arbitrary commands by running a series of commands after connecting to the device.
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< v200r009c00CVSS 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
- Physical
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:P/AC:L/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 the device modelLog into the AP controller or physically access the AP device and run: display device model or check the device label. Confirm the model is AP4050dn E.Affected if The device model is Huawei AP4050dn E.
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Check the installed firmware versionExecute: display version or display system software version on the AP device. Compare the firmware version to v200r009c00.Affected if The firmware version is lower than v200r009c00 (for example, v200r008c00 or earlier).
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Verify serial port accessibilityInspect the device physically to confirm whether the serial (console) port is exposed and accessible. Check if console cables are connected or if serial access is enabled on the device.Affected if Serial console port is physically accessible or console access is enabled on the device.
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Check for serial port authentication configurationReview serial port configuration by running: display current-configuration | include serial or display current-configuration | include console. Look for authentication settings on the serial interface.Affected if Serial console authentication is disabled or improperly configured, allowing unauthenticated command execution.
You are affected if you have a Huawei AP4050dn E device running firmware version lower than v200r009c00 with an accessible serial port interface.
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 dataUpgrade Huawei AP devices to version V200R009C00SPC800 or later. Until patched, restrict physical and console access to serial ports and monitor for unauthorized serial connections.
- Consultation3.0 h
- Implementation4.0 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 $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-5298 — 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-2019-5298 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
- No weaponised exploit code, or anything meant to cause harm
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