PT-2026-43176 · Zyxel · Gs1200-10V3 Firmware+4

Published 2026-05-26 · Updated 2026-05-26 · CVE-2026-4795

Mitre

CVSS v3.1

6.5

Medium

Base vector

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

A missing authorization vulnerability in Zyxel GS1200-5v3 firmware versions through 1.00(ACPS.2)C0, GS1200-8v3 firmware versions through 1.00(ACPT.2)C0,  GS1200-5HPv3 firmware versions through 1.00(ACPU.2)C0, GS1200-8HPv3 firmware versions through 1.00(ACPV.2)C0, and GS1200-10v3 firmware versions through 1.00(ACPW.2)C0 could allow a LAN-based, unauthenticated attacker to read the system configuration from a log file via a crafted HTTP request.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-4795

Affected Products

Gs1200-10V3 Firmware

Gs1200-5Hpv3 Firmware

Gs1200-5V3 Firmware

Gs1200-8Hpv3 Firmware

Gs1200-8V3 Firmware

References · 1

• https://zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-missing-authorization-vulnerability-in-gs1200v3-series-switches-05-26-2026 · Vendor Advisory