CVE-2026-7273: Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability

Vereiste actie (tekst van CISA, Engels)

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Beschrijving (NVD, Engels)

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.

BRONNEN

• CISA KEVCISA Known Exploited Vulnerabilities catalog

Andere lekken bij Zyxel

• CVE-2024-40891: Zyxel DSL CPE OS Command Injection Vulnerability
• CVE-2024-40890: Zyxel DSL CPE OS Command Injection Vulnerability
• CVE-2024-11667: Zyxel Multiple Firewalls Path Traversal Vulnerability
• CVE-2017-6884: Zyxel EMG2926 Routers Command Injection Vulnerability
• CVE-2017-18368: Zyxel P660HN-T1A Routers Command Injection Vulnerability

Gegevens van NVD, CISA KEV, FIRST EPSS en adviezen van leveranciers. Bijgewerkt 10 nov 2026.