DrayTek VigorSwitch Multiple Models OS Command Injection via tftp_upgrade
Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the tftp_upgrade function. The vulnerability is caused by insufficient filtering before the filename field is concatenated into a command. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands wit…
Severity high: primary CNA CVSS 8.6 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-08-24T17:07:57.684Z. Updated 2026-08-27T13:51:25.835Z.