CVE-2026-89178CWE-940

CVE-2026-89178

High · published September 11, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
28.2
In the wild
Unconfirmed
What it is

WeenyGenius, a computer lab management system by Howyar Technologies, has an Origin Validation Error vulnerability. Unauthenticated attackers on the same network can spoof the teacher workstation and send broadcast packets, causing student computers to attempt to establish a connection with the attacker.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00357 · 28.2th percentile
Weakness
CWE-940 · Improper Verification of Source of a Communication Channel
Published
2026-09-11T12:16Z
References (2)
https://www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html · [email protected]https://www.twcert.org.tw/tw/cp-132-11201-658c0-1.html · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 11 SEP 07:36Z
    Howyar｜WeenyGenius - Origin Validation Error
    cvelistv5