CVE-2023-23773
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 · uneditedMotorola EBTS/MBTS Base Radio fails to check firmware authenticity. The Motorola MBTS Base Radio lacks cryptographic signature validation for firmware update packages, allowing an authenticated attacker to gain arbitrary code execution, extract secret key material, and/or leave a persistent implant on the device.
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 confidenceThe Motorola MBTS Base Radio does not perform cryptographic signature validation on firmware update packages, allowing an authenticated attacker to install malicious firmware. This enables arbitrary code execution, extraction of secret key material, and persistent implant installation.
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= r05.x2.57= r05.x2.57CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 device modelAccess the radio's administrative interface or CLI and retrieve the device model information. Look for 'Ebts Base Radio' or 'Mbts Base Radio' in the system information or device status.Affected if The device is not a Motorola Ebts or Mbts Base Radio, then this CVE does not apply.
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Check firmware versionExecute the appropriate command or navigate to the firmware version display section in the device management interface. Common commands include 'show version', 'system info', or checking the firmware details page.Affected if The installed firmware version is exactly r05.x2.57, indicating the affected version.
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Verify firmware signature validation configurationAccess the firmware update or secure boot configuration settings. Look for options related to 'firmware signature verification', 'secure boot', 'code signing', or 'update authentication'. Check whether signature validation is enabled or disabled.Affected if Firmware signature validation is disabled, not configured, or not available as an option in the update settings, indicating the vulnerability is present.
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Check firmware update mechanismExamine the firmware upload/update process in the device admin panel or CLI. Identify if there is any mechanism for verifying the authenticity of firmware files before installation.Affected if The device allows firmware updates without requiring cryptographic signature verification or trust chain validation, leaving the update process vulnerable to malicious firmware injection.
If the device is a Motorola Ebts or Mbts Base Radio running firmware version r05.x2.57 and firmware signature validation is not enabled or not enforced during the update process, the environment is affected by this CVE.
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 dataImplement cryptographic signature validation for all firmware updates using a secure boot chain, ensuring only signed firmware from trusted sources can be loaded onto the device.
- Consultation8.0 h
- Implementation40.0 h
- Testing24.0 h
- Review / QA12.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $23,296.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-23773 — 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-2023-23773 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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