Updated daily · official sources

Security Radar

Vulnerabilities (CVE) being actively exploited, according to the CISA KEV catalog, with CVSS severity and exploitation probability (EPSS).

35exploited in the last 30 days

12critical (CVSS ≥ 9)

0used in ransomware

1781in the KEV catalog

CVE-2026-7273 High · CVSS 8.8 added on 09/21/2026

Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability

Zyxel · GS1900 Series Switches · CWE-121

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.

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Sources: CISA Known Exploited Vulnerabilities Catalog, NIST National Vulnerability Database and FIRST EPSS. Informational content; always follow the vendor advisory and fix.

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