CVE-2026-7273

Vendor

Zyxel

Product

GS1900 Series Switches

EPSS

1.00 (p100)

CISA KEV

added 21 Sep 2026, due 24 Sep 2026 (38d overdue)

Weakness

CWE-121

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 57
   KEV CISA KEV 21 Sep 2026

   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…

   KEV · due 24 Sep 2026 (overdue) Fix available CVE-2026-7273 Zyxel
2. 47
   CISA alert CISA 21 Sep 2026

   CISA Adds One Known Exploited Vulnerability to Catalog

   CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-7273 Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability This type…

   Exploited CVE-2026-7273 Zyxel
3. 31
   Research Insikt Group 19d ago

   September 2026 CVE Landscape

   In September 2026, Insikt Group® identified 94 high-impact vulnerabilities that should be prioritized for remediation, 59 of which had a Very Critical Recorded Future Risk Score. This represents a 29% increase from last month.

   EPSS 1.00 CVE-2026-88771CVE-2026-88772CVE-2026-35273+57 more