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CVE-2026-121817— About Time Technologies｜Herowatch Go Server - Insecure Direct Object Reference

Quick assessment

Affected
About Time Technologies Herowatch Go Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

由 About Time Technologies 开发的 Herowatch Go 服务器存在不安全的直接对象引用（IDOR）漏洞。已认证的远程攻击者可以通过修改特定参数，访问或操作其他用户的数据与功能。

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-121817

Vulnerability Information
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Vulnerability Title
About Time Technologies｜Herowatch Go Server - Insecure Direct Object Reference
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
About Time Technologies Herowatch Go Server all -

II. Public POCs for CVE-2026-121817

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-121817

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Other References for CVE-2026-121817 (2)

Same Patch Batch · About Time Technologies · 2026-11-04 · 3 CVEs total

CVE-2026-121816 8.8 HIGH About Time Technologies｜Herowatch Mini - Missing Authentication
CVE-2026-121818 7.8 HIGH About Time Technologies｜Herowatch Go - Security Misconfiguration

IV. Related Vulnerabilities

Same vendor: About Time Technologies
Same weakness: CWE-639