High severity7.3NVD Advisory· Published Sep 29, 2021· Updated Jun 17, 2026

CVE-2021-35028

Description

A command injection vulnerability in the CGI program of the Zyxel VPN2S firmware version 1.12 could allow an authenticated, local user to execute arbitrary OS commands.

Affected products

Zyxel/Zywall Vpn2s Firmware
cpe:2.3:o:zyxel:zywall_vpn2s_firmware:1.12\(abln.0\)c0:*:*:*:*:*:*:*
Zyxel/VPN2Sllm-fuzzy
Range: 1.12
Zyxel/Zywall 1050 Firmwarecpe-rescue
Range: 1.12(ABLN.0)C0

Patches

Vulnerability mechanics

References

www.zyxel.com/support/Zyxel_security_advisory_for_directory_traversal_and_command_injection_vulnerabilities_of_VPN2S_Firewall.shtmlnvdPatchVendor Advisory

News mentions

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