Vulnerability-Lookup

GHSA-35JR-C9GF-7V8M

Vulnerability from github – Published: 2026-09-11 09:31 – Updated: 2026-09-11 09:31

Details

WeenyGenius, a computer lab management system by Howyar Technologies, has a Use of Insecure Protocol vulnerability. Due to the reliance on ZMTP Null mode, unauthenticated attackers on the same network can capture packets to leak transmitted data, or perform replay attacks with forged commands to disrupt classroom operations.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89177"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-757"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-11T08:16:48Z",
    "severity": "HIGH"
  },
  "details": "WeenyGenius, a computer lab management system by Howyar Technologies, has a Use of Insecure Protocol vulnerability. Due to the reliance on ZMTP Null mode, unauthenticated attackers on the same network can capture packets to leak transmitted data, or perform replay attacks with forged commands to disrupt classroom operations.",
  "id": "GHSA-35jr-c9gf-7v8m",
  "modified": "2026-09-11T09:31:23Z",
  "published": "2026-09-11T09:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89177"
    },
    {
      "type": "WEB",
      "url": "https://www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html"
    },
    {
      "type": "WEB",
      "url": "https://www.twcert.org.tw/tw/cp-132-11201-658c0-1.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-89177 (GCVE-0-2026-89177)

Vulnerability from cvelistv5 – Published: 2026-09-11 07:35 – Updated: 2026-09-11 15:36

Title

Howyar｜WeenyGenius - Use of Insecure Protocol

Summary

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 15:33 UTC

CWE

CWE-757 - / CWE-319 / CWE-353

Assigner

twcert mitre root

References

2 references

URL	Tags
https://www.twcert.org.tw/tw/cp-132-11201-658c0-1.html	third-party-advisory
https://www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Howyar	WeenyGenius	Affected: 0 , ≤ 12.2.031 (custom)

Date Public

2026-09-11 07:35

Show details on NVD website

JSON

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  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-89177",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-11T15:33:26.050961Z",
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          "shortName": "CISA-ADP"
        },
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      "metrics": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-35JR-C9GF-7V8M

CVE-2026-89177 (GCVE-0-2026-89177)

Tags

Sightings

Nomenclature