CVE Catalog

CVE-2026-4795

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

14th percentile - higher than 14% of all known CVEs

Summary

In Zyxel GS1200v3 switch firmware (multiple models) up to specific versions, a missing authorization vulnerability allows an unauthenticated LAN-based attacker to read system configuration from a log file via a crafted HTTP request.

Risk Assessment

An attacker on the local network can obtain sensitive configuration information such as passwords or keys, which may facilitate further attacks on the network infrastructure.

Recommendation

Update the firmware of Zyxel GS1200v3 switches to the latest available version that includes security fixes.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS