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Mate 30 FirmwareOperating system · Huawei

CVE-2020-9211

HIGH · 7.2 CVSS v3.1 Published 2024-12-27
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 an out-of-bound read and write vulnerability in Huawei smartphone. A module dose not verify the input sufficiently. Attackers can exploit this vulnerability by modifying some configuration to cause out-of-bound read and write, causing denial of service. (Vulnerability ID: HWPSIRT-2020-05103) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9211.

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 confidence

Out-of-bounds memory read and write vulnerability in a Huawei smartphone module due to insufficient input validation. Attackers can exploit by modifying device configuration to trigger the out-of-bounds access, resulting in denial of service.

MitigationApply vendor-supplied firmware updates for affected Huawei smartphones once released. Until then, limit physical access and avoid installing untrusted configuration files or applications.

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
Mate 30 FirmwareOperating system
Affected:= 10.1.0.126\(c00e125r5p3\)

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 the device model
    Go to Settings > About Phone on the Huawei Mate 30 and verify the model name is Huawei Mate 30
    Affected if The device is not a Huawei Mate 30 smartphone, then it is not affected by this specific CVE
  2. Check the firmware version
    Go to Settings > About Phone > Version and locate the build number. Verify if it reads exactly 10.1.0.126(c00e125r5p3)
    Affected if The firmware version is exactly 10.1.0.126(c00e125r5p3), then the device is running the vulnerable version
  3. Verify the affected module exists
    Check if the smartphone configuration module referenced in the vulnerability is present on the device. This typically involves checking system settings related to device configuration or profile settings that can be modified
    Affected if The configuration module is present and modifiable, the device could be exploited if the firmware version matches the vulnerable release

A user is affected if they own a Huawei Mate 30 running firmware version 10.1.0.126(c00e125r5p3) and the configuration module that can trigger the out-of-bounds access is accessible on their device.

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-supplied firmware updates for affected Huawei smartphones once released. Until then, limit physical access and avoid installing untrusted configuration files or applications.

Recommended fix Moderate confidence

Latest Huawei Mate 30 security patch/firmware update (version higher than 10.1.0.126)

  1. 1. Check the current firmware version on the Huawei Mate 30 device by navigating to Settings > System > About Phone
  2. 2. Visit the official Huawei support website (www.huawei.com) or the Huawei security advisory page for CVE-2020-9211
  3. 3. Download and install the latest available security patch or firmware update for the Mate 30
  4. 4. After installation, verify the firmware version has been updated from 10.1.0.126(c00e125r5p3)
  5. 5. Ensure automatic security updates are enabled if available

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

Fix this in Mate 30 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,820
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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-2020-9211 in production — separate from our analysis above.

No notes yet

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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