CVE-2026-4795

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ZyxelGS1200-5v3 firmware<= 1.00(ACPS.2)C0affected
ZyxelGS1200-8v3 firmware<= 1.00(ACPT.2)C0affected
ZyxelGS1200-5HPv3 firmware<= 1.00(ACPU.2)C0affected
ZyxelGS1200-8HPv3 firmware<= 1.00(ACPV.2)C0affected
ZyxelGS1200-10v3 firmware<= 1.00(ACPW.2)C0affected

Weaknesses

  • CWE-862: CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References