What’s Vulnerable › Vulnerabilities

CVE-2026-89177: Howyar｜WeenyGenius - Use of Insecure Protocol

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-09-11
• Weakness: CWE-757

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

• Howyar WeenyGenius: through 12.2.031

References

• https://www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html
• https://www.twcert.org.tw/tw/cp-132-11201-658c0-1.html

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