Vulnerability · Published Sep 11, 2026 · Assigned by twcert
CVE-2026-89177Howyar｜WeenyGenius - Use of Insecure Protocol
High 8.8
In plain English
A high-severity security flaw in WeenyGenius from Howyar. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 70.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Howyar | WeenyGenius | 0 – through 12.2.031 |
Weakness: CWE-757 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- 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