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  4. CVE 2026 121817 about time technologiesherowatch go server
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Back to active CVEs
High · CVSS 8.7CVE-2026-121817

About Time Technologies｜Herowatch Go Server - Insecure Direct Object ReferenceCVE-2026-121817

Answer in brief

CVE-2026-121817 records a High severity (CVSS 8.7) vulnerability in About Time Technologies｜Herowatch Go Server - Insecure Direct Object Reference. The current sources do not mark it as known exploited. The current feed maps About Time Technologies/Herowatch Go Server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 4, 2026Updated Nov 4, 2026Source checked Nov 4, 2026First seen by HOL Nov 4, 2026Material review Nov 4, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps About Time Technologies/Herowatch Go Server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
About Time Technologies/Herowatch Go Servergeneric>=0 <**

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for About Time Technologies/Herowatch Go Server.
  2. 2Review the reported fix. Source-reported solution: The product is no longer maintained. Users are advised to replace it with a supported device.

Evidence timeline and material changes

  1. Published upstream

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 4, 2026

Sources and claim methodology

  • Source referencetwcert.org.tw
  • Source referencetwcert.org.tw
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • FV Flowplayer Video Player < 7.5.56.7212 - Contributor+ Arbitrary Video and Meta Record Deletion, Video Modification and Meta Disclosure via IDORAlso CWE-639
  • Essential Real Estate 4.4.3 - 5.3.4 - Subscriber+ Arbitrary Media Attachment Deletion via IDORAlso CWE-639
  • Premium Packages < 7.3.1 - Unauthenticated Guest Order Status DisclosureAlso CWE-639
  • Premium Packages < 7.3.1 - Subscriber+ Guest Order TakeoverAlso CWE-639

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-639
Source
CVE List V5
Source checked
Nov 4, 2026
References
2 linked sources
Open source record