VDB
CVE-2026-71911
CVE-2026-71911
PUBLISHED
CVSS 8.6 HIGH
Reported by VulnCheck · Published August 24, 2026
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.
Risk Scores
CVSS 4.0
8.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| DrayTek Corporation | VigorAP 918R | 0 |
| DrayTek Corporation | VigorAP 960C | 0 |
| DrayTek Corporation | VigorAP 1060C | 0 |
| DrayTek Corporation | VigorAP 906 | 0 |
| DrayTek Corporation | VigorAP 912C | 0 |
| DrayTek Corporation | VigorAP 903 | 0 |
| draytek | vigorap_918r_firmware | 0, 0 |
| draytek | vigorap_960c_firmware | 0, 0 |
| draytek | vigorap_1060c_firmware | 0, 0 |
| DrayTek Corporation | VigorAP 960C | 0, 0 |
| DrayTek Corporation | VigorAP 912C | 0, 0 |
| DrayTek Corporation | VigorAP 906 | 0, 0 |
| draytek | vigorap_906_firmware | 0, 0 |
| DrayTek Corporation | VigorAP 1060C | 0, 0 |
| DrayTek Corporation | VigorAP 918R | 0, 0 |
| DrayTek Corporation | VigorAP 903 | 0, 0 |
| draytek | vigorap_903_firmware | 0, 0 |
| draytek | vigorap_912c_firmware | 0, 0 |
Timeline
- Aug 24, 2026 Coalition ESS Score
- Aug 24, 2026 CVE Published
- Aug 25, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Aug 26, 2026 CVE Updated
- Aug 30, 2026 EPSS Score
- Sep 3, 2026 EPSS Score
References
- vendor-advisory
- VulnCheck Advisory: DrayTek VigorAP Multiple Models Buffer Overflow via setLan third-party-advisory