CVE-2026-121818
High
Description
Herowatch Mini developed by About Time Technologies has a system signing vulnerability. Authenticated local attackers can exploit a publicly available test key to sign malicious programs, allowing them to elevate privileges and execute arbitrary code.
SeverityHigh
CVSS7.8
Exploit probability—
ProductHerowatch Mini
PublishedNov 4, 2026
First seenNov 4, 2026
Weakness typeCWE-1394CWE-1394
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| About Time Technologies Herowatch Mini | No range specified | — |
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