high Known exploited

CVE-2026-7273

Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability

Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.

Published: Sep 21, 2026
Vendor: Zyxel
Product: GS1900 Series Switches
CISA due date: 2026-09-24
Source: merged

References

ADVISORY

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