CVE-2026-7273: Zyxel GS1900 Series Switches Stack-Based Buffer Overflow
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.
- CISA KEV-listed (remediation due 2026-09-24)
- EPSS 2.7% (86.2% percentile)
- CVSS 8.8 high