CVE-2026-89177 Howyar｜WeenyGenius - Use of Insecure Protocol
Unauthenticated attackers can capture data or disrupt operations via insecure ZMTP Null mode in WeenyGenius lab management software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89177?
CVE-2026-89177 is a high-severity vulnerability in Howyar WeenyGenius, published on 11 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-757
Which versions are affected by CVE-2026-89177?
How do I fix CVE-2026-89177?
No fix has been published for CVE-2026-89177 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-89177 being exploited?
There is no known exploitation of CVE-2026-89177 in the wild and no public exploit code.
Sources
Also known as GHSA-35jr-c9gf-7v8m.