VULNERABILITY INTELLIGENCE

CVE-2026-7273

CVSS score8.8 HIGH
EPSS probability2.78%
CISA KEVKnown exploited vulnerability
Published2026-06-16
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability

Vendor / product: Zyxel / GS1900 Series Switches

Description

A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.

Weakness classification

  • security@zyxel.com.tw: CWE-121

Primary references