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Imanager Neteco 6000 FirmwareOperating system · Huawei

CVE-2021-37127

HIGH · 7.2 CVSS v3.1 Published 2021-10-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

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 · unedited
There is a signature management vulnerability in some huawei products. An attacker can forge signature and bypass the signature check. During firmware update process, successful exploit this vulnerability can cause the forged system file overwrite the correct system file. Affected product versions include:iManager NetEco V600R010C00CP2001,V600R010C00CP2002,V600R010C00SPC100,V600R010C00SPC110,V600R010C00SPC120,V600R010C00SPC200,V600R010C00SPC210,V600R010C00SPC300;iManager NetEco 6000 V600R009C00SPC100,V600R009C00SPC110,V600R009C00SPC120,V600R009C00SPC190,V600R009C00SPC200,V600R009C00SPC201,V600R009C00SPC202,V600R009C00SPC210.

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 confidence

A signature management vulnerability in Huawei iManager NetEco products allows attackers to forge signatures and bypass verification during the firmware update process. Successful exploitation enables malicious system files to overwrite legitimate system files, potentially leading to complete system compromise.

MitigationApply vendor-provided patches for affected versions. Until patches are available, implement additional integrity verification mechanisms for firmware updates and restrict network access to the update infrastructure.

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
Imanager Neteco 6000 FirmwareOperating system
Affected:= v600r010c00cp2001= v600r010c00cp2002= v600r010c00spc100= v600r010c00spc110= v600r010c00spc120= v600r010c00spc200= v600r010c00spc210= v600r010c00spc300
Imanager Neteco FirmwareOperating system
Affected:= v600r009c00spc100= v600r009c00spc110= v600r009c00spc120= v600r009c00spc190= v600r009c00spc200= v600r009c00spc201= v600r009c00spc202= v600r009c00spc210

CVSS 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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Huawei iManager NetEco version
    Access the product management interface or use the system's version display command to retrieve the current firmware version. Look for version strings such as v600r010c00 or v600r009c00 followed by suffixes like cp2001, spc100, etc.
    Affected if The installed version matches one of the listed affected versions: v600r010c00cp2001, v600r010c00cp2002, v600r010c00spc100, v600r010c00spc110, v600r010c00spc120, v600r010c00spc200, v600r010c00spc210, v600r010c00spc300, v600r009c00spc100, v600r009c00spc110, v600r009c00spc120, v600r009c00spc190, v600r
  2. Confirm firmware update capability is accessible
    Check whether the firmware update or upgrade feature is enabled and accessible in the iManager NetEco management interface. Verify if the update mechanism allows uploading firmware packages.
    Affected if The firmware update functionality is enabled and exposed, allowing an attacker to supply modified firmware packages
  3. Verify signature verification status for updates
    Inspect the firmware update configuration or logs to determine whether signature verification is being performed on uploaded firmware packages. Look for verification failures or disabled checks.
    Affected if Signature verification is disabled, bypassed, or not properly enforced during the firmware update process

You are affected if your Huawei iManager NetEco installation runs any of the specific versions listed AND the firmware update feature with signature verification is accessible in your environment.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-provided patches for affected versions. Until patches are available, implement additional integrity verification mechanisms for firmware updates and restrict network access to the update infrastructure.

Recommended fix Moderate confidence

Upgrade to a version later than V600R010C00SPC300 for NetEco 6000 or V600R009C00SPC210 for NetEco (refer to Huawei's official patch release for exact fixed versions)

  1. 1. Identify the exact model and current firmware version of the Huawei iManager NetEco or iManager NetEco 6000 device.
  2. 2. Navigate to the Huawei security advisory page at www.huawei.com to locate the official CVE-2021-37127 advisory and corresponding patches.
  3. 3. Download the recommended patched firmware version for your specific device model from Huawei's official support portal.
  4. 4. Before applying the update, back up the current device configuration according to Huawei's backup procedures.
  5. 5. Apply the firmware upgrade following the standard Huawei upgrade process for iManager NetEco devices.
  6. 6. After upgrade, verify the new firmware version matches the patched release and confirm the signature verification vulnerability is resolved.
Caveat Review Huawei's upgrade guide for any configuration migration requirements or downtime procedures specific to your NetEco version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Imanager Neteco 6000 Firmware Scoped from the published advisory
  • Consultation12.0 h
  • Implementation32.0 h
  • Testing20.0 h
  • Review / QA12.0 h
76.0 hours of engineering $13,320
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-37127 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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