CVE-2026-7273 HIGH

CVE-2026-7273

Vendor Zyxel
Product GS1900-48HPv2 firmware
Weakness CWE-121
Published June 16, 2026
Last update June 16, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 16, 2026 CVE published
June 16, 2026 Record updated