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.
Published: 2026-11-04
Score: 8.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

The product is no longer maintained. Users are advised to replace it with a supported device.

Tracking

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Advisories

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History

Wed, 04 Nov 2026 06:45:00 +0000

Type Values Removed Values Added
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.
Title About Time Technologies｜Herowatch Go - Security Misconfiguration
Weaknesses CWE-1394
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: twcert

Published:

Updated: 2026-11-04T06:56:13.525Z

Reserved: 2026-11-04T05:40:25.201Z

Link: CVE-2026-121818

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-04T07:17:12.350

Modified: 2026-11-04T07:17:12.350

Link: CVE-2026-121818

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-1394

    Use of Default Cryptographic Key