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CVE-2026-121816 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Herowatch Mini developed by About Time Technologies has a Missing Authentication vulnerability. Unauthenticated remote attackers can connect to the affected device's ADB service and obtain an ADB shell, thereby accessing device resources or performing related operations.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.twcert.org.tw/en/cp-139-11356-8292a-2.html	[email protected]	AdvisoryRemedy
https://www.twcert.org.tw/tw/cp-132-11355-341da-1.html	[email protected]	AdvisoryRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-306	Missing Authentication for Critical Function	[email protected]

Affected Products

Product	Versions
About Time Technologies Herowatch Mini	All versions
CPE No CPEs found in CPE dictionary for this product. Remediation Workaround:high effort Replace the Herowatch Mini with a supported device.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	CISA-ADP
Nov 4, 2026	New CVE Received	[email protected]