CVE-2026-89177

Howyar|WeenyGenius - Use of Insecure Protocol

Published Sep 11, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Update to version 12.3.033 or later.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Howyar
Howyar weenygenius
Vendors & Products Howyar
Howyar weenygenius
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Howyar|WeenyGenius - Use of Insecure Protocol
Weaknesses CWE-757
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
twcert
Published
Updated
Sep 11, 2026, 3:36 PM
Reserved
Sep 11, 2026, 6:14 AM
Status
Deferred
Published
Sep 11, 2026, 8:16 AM
Modified
Sep 11, 2026, 4:17 PM