Vulnerability in Howyar Weenygenius
CVE-2026-89177
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.twcert.org.tw/tw/cp-132-11201-658c0-1.html (third-party-advisory)
- www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html (third-party-advisory)
Frequently asked questions
- What is CVE-2026-89177?
- CVE-2026-89177 is a high-severity vulnerability in Howyar Weenygenius, classified under CWE-757. CVSS score: 8.8/10. Published 2026-09-11.
- How severe is CVE-2026-89177?
- High severity. CVSS v3 base score is 8.8 out of 10.