High severity7.8NVD Advisory· Published Nov 4, 2026

CVE-2026-121818

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.

Affected products

About Time Technologies/Herowatch Minillm-create

Patches

Vulnerability mechanics

References

www.twcert.org.tw/en/cp-139-11362-1e829-2.htmlnvd
www.twcert.org.tw/tw/cp-132-11360-ab123-1.htmlnvd

News mentions

No linked articles in our index yet.

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000