CVE-2019-5257
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 · uneditedCertain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;Secospace) have a resource management vulnerability. An attacker who logs in to the board may send crafted messages from the internal network.
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 confidenceThis is a resource management vulnerability in multiple Huawei products (AP2000, IPS/NGFW modules, NIP series, S5700, SVN series, SeMG9811, Secospace). An authenticated attacker who has logged into the board can send crafted messages from the internal network to trigger improper resource handling, potentially causing denial of service or resource exhaustion.
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= v200r005c30= v200r006c10= v200r006c20= v200r007c10= v200r007c20= v200r008c00= v200r008c10= v200r009c00= v500r001c00spc300= v500r001c00spc500= v500r001c00sph303= v500r001c00sph508= v500r001c20= v500r001c20spc100= v500r001c20spc100pwe= v500r001c20spc200= v500r001c20spc200b062= v500r001c20spc200pwe= v500r001c20spc300b078= v500r001c20spc300pwe= v500r001c00spc300= v500r001c00spc500= v500r001c00spc500pwe= v500r001c00sph303= v500r001c00sph508= v500r001c20= v500r001c20spc100= v500r001c20spc100pwe= v500r001c20spc200= v500r001c20spc200b062= v500r001c20spc200pwe= v500r001c20spc300b078= v500r001c00spc300= v500r001c00spc500= v500r001c00sph303= v500r001c00sph508= v500r001c20= v500r001c20spc100= v500r001c20spc100pwe= v500r001c20spc200= v500r001c20spc200b062= v500r001c20spc200pwe= v500r001c20spc300b078= v500r001c20spc300pwe= v500r001c00spc300= v500r001c00spc500= v500r001c00sph303= v500r001c00sph508= v500r001c20= v500r001c20spc100= v500r001c20spc100pwe= v500r001c20spc200= v500r001c20spc200b062= v500r001c20spc200pwe= v500r001c20spc300b078= v500r001c30= v500r001c50= v500r001c50pwe= v500r001c80= v500r005c00= v200r005c03= v200r003c00spc100CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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 the device modelLog into the Huawei device and run the command to display the product model, typically `display device manuinfo` or check the device label/management interface for the model number (AP2000, IPS, NGFW, NIP6300, NIP6600, NIP6800, S5700, or SVN5600)Affected if The model is any of: AP2000, IPS, NGFW, NIP6300, NIP6600, NIP6800, S5700, or SVN5600
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Determine the firmware versionLog into the device and run the version display command, typically `display version` or `display firmware version`, to obtain the exact firmware version stringAffected if The installed firmware version matches one of the versions listed in the affected versions for your specific product model
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Check management interface exposureReview the network configuration for the device's management interface by running `display current-configuration` or `display ip interface` to determine if the device management or board is accessible from the internal networkAffected if The management or board interface is reachable from untrusted internal network segments
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Verify authentication statusReview user accounts and authentication logs using `display user-interface` and `display login` to confirm which users have authenticated access to the device boardAffected if There are valid user accounts configured that can log into the device board from the internal network
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Look for resource exhaustion indicatorsCheck system resources using commands like `display cpu-usage`, `display memory-usage`, or `display logbuffer` for signs of abnormal resource consumption or denial of serviceAffected if There is unexplained high CPU usage, memory exhaustion, or system logs indicating resource handling failures
You are affected if your device model and firmware version match the affected product/version list AND the device is accessible from the internal network where an authenticated attacker could send crafted messages to trigger the resource handling flaw.
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 affected Huawei products. Restrict administrative access to trusted personnel and implement network segmentation to limit exposure of management interfaces to untrusted networks.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-5257 — 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-2019-5257 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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