EUVD-2026-64970
GHSA-79vq-rxp3-f6f5
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable web interface (AV:N/AC:L) but admin credentials required (PR:H); full RCE and DoS potential yields C:H/I:H/A:H with no scope change.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Buffer overflow in the setLan function of multiple DrayTek VigorAP access point models enables authenticated remote attackers to cause denial of service or execute arbitrary commands on affected devices. Six distinct VigorAP models - 903, 906, 912C, 918R, 960C, and 1060C - are confirmed affected across specific firmware version ranges, all patched by DrayTek in an August 2026 advisory. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires valid administrative credentials for the device's web management interface - CVSS PR:H confirms this. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N, score 8.6) reflects network accessibility with low attack complexity but a critical prerequisite: PR:H (high privileges, i.e., valid admin credentials). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patches are available; upgrade affected devices to the following minimum firmware versions: VigorAP 903 to 1.4.22 or later, VigorAP 906 to 1.4.13 or later, VigorAP 912C to 1.4.15 or later, VigorAP 918R to 1.4.11 or later, VigorAP 960C to 1.4.12 or later, and VigorAP 1060C to 1.4.12 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all DrayTek VigorAP devices in your environment-specifically models 903, 906, 912C, 918R, 960C, and 1060C-and document current firmware versions. …
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Same weakness CWE-120 – Classic Buffer Overflow
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External POC / Exploit Code
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