dbcve.org
Moto E20 FirmwareOperating system · Motorola

CVE-2022-3917

MEDIUM · 5.5 CVSS v3.1 Published 2022-12-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
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
Improper access control of bootloader function was discovered in Motorola Mobility Motorola e20 prior to version RONS31.267-38-8 allows attacker with local access to read partition or RAM data.

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

Improper access control in the bootloader of Motorola e20 phones prior to firmware version RONS31.267-38-8 allows an attacker with local (physical) access to read sensitive data from device partitions or RAM memory. This is a bootloader-level access control flaw that bypasses normal security boundaries.

MitigationUpdate affected Motorola e20 devices to firmware version RONS31.267-38-8 or later. For enterprise deployments, inventory all affected devices and push the firmware update via OTA or manual flashing.

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
Moto E20 FirmwareOperating system
Affected:< rons31.267-38-8

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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 device model
    Check if the device is a Motorola Moto E20. On the phone, go to Settings > About Phone > Model Number, or look for 'Moto E20' branding on the device casing.
    Affected if Device model is not Motorola Moto E20 (other models are not affected by this specific CVE)
  2. Check installed firmware version
    On the phone, go to Settings > About Phone > Software Info > Build Number. Note the full build number displayed. Alternatively, boot into recovery mode or use fastboot commands with 'fastboot getvar all' to retrieve the current firmware version.
    Affected if The installed firmware version is earlier than rons31.267-38-8 (any version before this threshold is vulnerable)
  3. Compare version against fixed release
    Compare the installed build number (from step 2) against the fixed version string 'rons31.267-38-8'. Version comparison should treat the version as a string with numeric segments.
    Affected if The installed version string numerically precedes rons31.267-38-8 (e.g., rons31.267-38-7, rons31.267-37-5, or earlier release trains)
  4. Determine physical access exposure
    Assess whether the device could be accessed by unauthorized individuals in its deployment location. This includes evaluating physical security of the device (e.g., unattended desks, public areas, shared devices).
    Affected if Physical access to the unlocked or powered-on device is possible for unauthorized users, which would enable exploitation of the bootloader flaw

A user is affected if they own a Motorola Moto E20 running firmware earlier than version rons31.267-38-8 and the device can be physically accessed by an attacker.

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

Update affected Motorola e20 devices to firmware version RONS31.267-38-8 or later. For enterprise deployments, inventory all affected devices and push the firmware update via OTA or manual flashing.

Recommended fix Moderate confidence

RONS31.267-38-8 or later

  1. Back up all important data from the device to a secure location
  2. Ensure the device has sufficient battery charge (recommended at least 50%)
  3. Connect the device to a stable Wi-Fi network
  4. Navigate to Settings > System > System Update on the Moto E20
  5. Check for available updates and download version RONS31.267-38-8 or later
  6. Follow the on-screen prompts to install the firmware update
  7. Allow the device to complete the update process and restart automatically
  8. Verify the update was successful by checking Settings > System > System Update for the current version

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

Fix this in Moto E20 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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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-2022-3917 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