๐Ÿ” CVE Alert

CVE-2026-105664

MEDIUM 5.3

Guangzhou Juan IoT Technology EseeCloud Observable Response Discrepancy

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th

The endpoint exposes an observable response discrepancy when processing ID values. A request submitted with a nonexistent ID returns a distinct error response code from one submitted with a valid, registered ID, allowing an attacker holding a valid access token - but without further authentication or authorization - to distinguish valid ID values from the full 10-digit numeric search space. Combined with the absence of meaningful rate limiting on this endpoint, this discrepancy constitutes an enumeration oracle, enabling an attacker to discover registered devices at scale.

CWE CWE-204
Vendor guangzhou juan iot technology co., ltd.
Product eseecloud app
Published Oct 16, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Affected Versions

Guangzhou Juan IoT Technology Co., Ltd. / EseeCloud App
0 โ‰ค 4.9.6
Guangzhou Juan IoT Technology Co., Ltd. / EseeCloud Firmware
0 โ‰ค 4.9.86.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
eseecloud.app: https://eseecloud.app/ cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-288-02 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-288-02.json

Credits

Donghyeon Lee of Tokyo University of Science and GMO Flatt Security reported this vulnerability to CISA.