CVE-2024-36555Public exploitNetwork attack vector

Device identity forgery via unauthenticated SMS command

Published Feb 6, 2025 · Updated Feb 10, 2025

Missing authentication in KW50 and KW-60 smartwatch firmware allows remote attackers to forge the identity of an affected device. The affected builds accept the fixed token in an IMEI-setting SMS and write the supplied value as the watch IMEI without authenticating the sender. Cellular SMS reachability and knowledge of the watch number are required; changing the IMEI enables impersonation where services rely on that identifier.

CVSS severity9.8
Critical
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in KW50 and KW-60 smartwatch firmware allows remote attackers to forge the identity of an affected device. The affected builds accept the fixed token in an IMEI-setting SMS and write the supplied value as the watch IMEI without authenticating the sender. Cellular SMS reachability and knowledge of the watch number are required; changing the IMEI enables impersonation where services rely on that identifier.

The record

CVE
CVE-2024-36555
Published
Feb 6, 2025
Updated
Feb 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1644
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1644Out of Band Data

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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