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Missing AuthenticationWeakness · CWE-306

CVE-2024-36555

CRITICAL · 9.8 CVSS v3.1 Published 2025-02-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
Built-in SMS-configuration command in Forever KidsWatch Call Me KW50 R36_YDR_A3PW_GM7S_V1.0_2019_07_15_16.19.24_cob_h and Forever KidsWatch Call Me 2 KW-60 R36CW_YDE_S4_A29_2_V1.0_2023.05.24_22.49.44_cob_b allows malicious users to change the device IMEI-number which allows for forging the identity of 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 confidence

A built-in SMS-configuration command in Forever KidsWatch Call Me KW50 and KW-60 devices allows unauthenticated users to change the device IMEI number via SMS, enabling device identity forgery.

MitigationContact the device vendor for a firmware update that requires authentication for IMEI modification commands, or disable SMS-based configuration if possible.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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

CVSS:3.1/AV:N/AC:L/PR:N/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 device model
    Locate the device label or settings menu to confirm the exact model is Forever KidsWatch Call Me KW50 or KW-60
    Affected if Device is a KW50 or KW-60 model
  2. Verify SMS configuration is active
    Check device settings or documentation to determine if the SMS-based configuration feature is enabled on the device
    Affected if SMS configuration feature is enabled and reachable
  3. Test IMEI command access
    Send the built-in SMS configuration command for IMEI modification (consult device documentation for the specific command syntax) from an unauthorized number
    Affected if The command executes and changes the IMEI without requiring authentication
  4. Check for authentication requirement
    Review device SMS command documentation or attempt the IMEI change command with incorrect credentials if authentication is expected
    Affected if IMEI can be changed via SMS without any password, PIN, or other authentication
  5. Confirm network exposure
    Determine if the device SMS receiver is accessible from external/untrusted phone numbers
    Affected if The device accepts SMS commands from numbers not pre-registered or trusted

If the device is a KW50 or KW-60 model with SMS configuration enabled and the IMEI can be changed via SMS without any authentication, the environment is affected by this vulnerability.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Contact the device vendor for a firmware update that requires authentication for IMEI modification commands, or disable SMS-based configuration if possible.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing8.0 h
  • Review / QA4.0 h
18.0 hours of engineering $3,080
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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-2024-36555 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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