CVE-2026-71911: DrayTek Corporation Vigorap 1060c

High severity, CVSS 7.2. EPSS: 0.7% chance of exploitation in the next 30 days.

Multiple DrayTek VigorAP models contain a buffer overflow vulnerability in the setLan function. The vulnerability is caused by missing length checks during memory copy operations involving the lanVlanId0, lanIp, and lanNetmask fields. A remote attacker can trigger this vulnerability via crafted input, causing a denial of service or potentially executing arbitrary commands. Exploitation requires valid administrative credentials for the device's web management interface.

Affected products

• DrayTek Corporation Vigorap 1060c: before 1.4.12 (fixed in 1.4.12)
• DrayTek Corporation Vigorap 903: before 1.4.22 (fixed in 1.4.22)
• DrayTek Corporation Vigorap 906: before 1.4.13 (fixed in 1.4.13)
• DrayTek Corporation Vigorap 912c: before 1.4.15 (fixed in 1.4.15)
• DrayTek Corporation Vigorap 918r: before 1.4.11 (fixed in 1.4.11)
• DrayTek Corporation Vigorap 960c: before 1.4.12 (fixed in 1.4.12)

Published 2026-08-24. Last modified 2026-08-26.