CVE-2026-121817

Herowatch Go Server developed by About Time Technologies has a Insecure Direct Object Reference…

Risk score: 50/100
CVSS: 7.5 v3.1
Published: 4 Nov 2026

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What to know

What it is: Herowatch Go Server developed by About Time Technologies has a Insecure Direct Object Reference vulnerability. Authenticated remote attackers can modify specific parameters to access or operate other users' data and functions.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 7.5 high
Remotely exploitable without logging in

References

https://www.twcert.org.tw/en/cp-139-11364-0dce6-2.html
https://www.twcert.org.tw/tw/cp-132-11366-d92ac-1.html

Original description

Herowatch Go Server developed by About Time Technologies has a Insecure Direct Object Reference vulnerability. Authenticated remote attackers can modify specific parameters to access or operate other users' data and functions.

Last activity 4 Nov 2026. Patch Forecast updates every hour.