CVE-2026-89178: Howyar WeenyGenius origin validation error in teacher workstation spoofing

CVE-2026-89178 · Severity: high · CVSS 8.8 · Published 2026-09-11

WeenyGenius is a computer lab management system used to control and monitor student computers in educational settings. An unauthenticated attacker on the same network can impersonate the teacher's workstation and send broadcast commands, causing student computers to establish connections with the attacker instead of the legitimate teacher. This allows the attacker to gain remote control over student machines, disrupting classroom operations and potentially accessing sensitive student data.

Technologies: Howyar WeenyGenius. Vendors: Howyar.

Quick answers

Is CVE-2026-89178 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-89178 being exploited in the wild.
How severe is CVE-2026-89178?
High severity, with a CVSS score of 8.8, published 11 September 2026.
Which products and versions are affected?
Howyar WeenyGenius 12.2.031 and earlier.
Is there a fix for CVE-2026-89178?
A patch was published on 2026-09-11: Fix available in version 12.3.033 or later Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-89178 attacked?
It is attacked from the adjacent network, in a network appliance.
Am I affected by CVE-2026-89178?
Check whether you run Howyar WeenyGenius at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

CVE-2026-89178 is an origin validation error in WeenyGenius versions 12.2.031 and earlier. The vulnerability exists because the system does not properly validate the origin/source of broadcast packets used for teacher-to-student communication. Unauthenticated attackers on the same network segment can exploit this by sending spoofed broadcast packets claiming to originate from the teacher workstation, causing student computers to initiate connections with the attacker. No authentication or user interaction is required; the attack is feasible against any student endpoint reachable on the network. An attacker gaining such access can achieve full remote control over affected student computers. The fix is to update to WeenyGenius version 12.3.033 or later.

Affected products

  • Howyar WeenyGenius 12.2.031 and earlier

Timeline

  • 2026-09-11: disclosed
  • 2026-09-11: patched: Fix available in version 12.3.033 or later

References

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