Vulnerability · Published Nov 4, 2026 · Assigned by twcert
CVE-2026-121816About Time Technologies｜Herowatch Mini - Missing Authentication
High 8.8
In plain English
A high-severity missing authentication in Herowatch Mini from About Time Technologies. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 70.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| About Time Technologies | Herowatch Mini | all |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.twcert.org.tw/tw/cp-132-11355-341da-1.html third-party-advisory
- https://www.twcert.org.tw/en/cp-139-11356-8292a-2.html third-party-advisory