CVE-2025-8693

A post-authentication command injection vulnerability in the "priv" parameter of Zyxel DX3300-T0 firmware version 5.50(ABVY.6.3)C0 and earlier could allow an authenticated attacker to execute operating system (OS) commands on an affected device. It has a CVSS v3.1 base score of 8.8 (HIGH).

CVE-2025-8693 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

CVE-2025-8693 affects products from zyxel, specifically: ax7501-b0, ax7501-b0_firmware, ax7501-b1, ax7501-b1_firmware, dm4200-b0, dm4200-b0_firmware, dx3300-t0, dx3300-t0_firmware, dx3300-t1, dx3300-t1_firmware, dx3301-t0, dx3301-t0_firmware, dx4510-b1, dx4510-b1_firmware, dx5401-b0, dx5401-b0_firmware, dx5401-b1, dx5401-b1_firmware, ee3301-00, ee3301-00_firmware, ee5301-00, ee5301-00_firmware, ee6510-10, ee6510-10_firmware, emg3525-t50b, emg3525-t50b_firmware, emg5523-t50b, emg5523-t50b_firmware, emg5723-t50k, emg5723-t50k_firmware, ex3300-t0, ex3300-t0_firmware, ex3300-t1, ex3300-t1_firmware, ex3301-t0, ex3301-t0_firmware, ex3500-t0, ex3500-t0_firmware, ex3501-t0, ex3501-t0_firmware, ex3510-b0, ex3510-b0_firmware, ex3510-b1, ex3510-b1_firmware, ex3600-t0, ex3600-t0_firmware, ex5401-b0, ex5401-b0_firmware, ex5401-b1, ex5401-b1_firmware, ex5501-b0, ex5501-b0_firmware, ex5510-b0, ex5510-b0_firmware, ex5512-t0, ex5512-t0_firmware, ex5601-t0, ex5601-t0_firmware, ex5601-t1, ex5601-t1_firmware, ex7501-b0, ex7501-b0_firmware, ex7710-b0, ex7710-b0_firmware, gm4100-b0, gm4100-b0_firmware, pe3301-00, pe3301-00_firmware, pe5301-01, pe5301-01_firmware, pm3100-t0, pm3100-t0_firmware, pm5100-t0, pm5100-t0_firmware, pm7300-t0, pm7300-t0_firmware, pm7500-00, pm7500-00_firmware, px3321-t1, px3321-t1_firmware, px5301-t0, px5301-t0_firmware, vmg3625-t50b, vmg3625-t50b_firmware, vmg3927-t50k, vmg3927-t50k_firmware, vmg4005-b50a, vmg4005-b50a_firmware, vmg4005-b50b, vmg4005-b50b_firmware, vmg4005-b60a, vmg4005-b60a_firmware, vmg8623-t50b, vmg8623-t50b_firmware, vmg8825-t50k, vmg8825-t50k_firmware, we3300-00, we3300-00_firmware, wx3100-t0, wx3100-t0_firmware, wx3401-b0, wx3401-b0_firmware, wx3401-b1, wx3401-b1_firmware, wx5600-t0, wx5600-t0_firmware, wx5610-b0, wx5610-b0_firmware. Check the affected products table above for specific version ranges.

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.