Multiple DrayTek VigorAP models contain a buffer overflow vulnerability in the apautotest function. The vulnerability is caused by missing length checks during memory copy operations involving the CMD6 field. 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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
DrayTek Corporation VigorAP 918R unaffected
Version Status Constraints
0 affected < 1.4.11
DrayTek Corporation VigorAP 960C unaffected
Version Status Constraints
0 affected < 1.4.12
DrayTek Corporation VigorAP 1060C unaffected
Version Status Constraints
0 affected < 1.4.12
DrayTek Corporation VigorAP 906 unaffected
Version Status Constraints
0 affected < 1.4.13
DrayTek Corporation VigorAP 912C unaffected
Version Status Constraints
0 affected < 1.4.15
DrayTek Corporation VigorAP 903 unaffected
Version Status Constraints
0 affected < 1.4.22

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Project Subscriptions

Vendors Products
Draytek Subscribe
Vigorap 1060c Firmware Subscribe
Vigorap 903 Firmware Subscribe
Vigorap 906 Firmware Subscribe
Vigorap 912c Firmware Subscribe
Vigorap 918r Firmware Subscribe
Vigorap 960c Firmware Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.draytek.com/about/security-advisory/multiple-remote-code-execution-and-buffer-overflow-vulnerabilities-in-vigorap-series-august-2026/ cve-icon cve-icon
https://www.vulncheck.com/advisories/draytek-vigorap-multiple-models-buffer-overflow-via-apautotest cve-icon cve-icon
History

Mon, 24 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 24 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Description Multiple DrayTek VigorAP models contain a buffer overflow vulnerability in the apautotest function. The vulnerability is caused by missing length checks during memory copy operations involving the CMD6 field. 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.
Title DrayTek VigorAP Multiple Models Buffer Overflow via apautotest
First Time appeared Draytek
Draytek vigorap 1060c Firmware
Draytek vigorap 903 Firmware
Draytek vigorap 906 Firmware
Draytek vigorap 912c Firmware
Draytek vigorap 918r Firmware
Draytek vigorap 960c Firmware
Weaknesses CWE-120
CPEs cpe:2.3:o:draytek:vigorap_1060c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigorap_903_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigorap_906_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigorap_912c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigorap_918r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigorap_960c_firmware:*:*:*:*:*:*:*:*
Vendors & Products Draytek
Draytek vigorap 1060c Firmware
Draytek vigorap 903 Firmware
Draytek vigorap 906 Firmware
Draytek vigorap 912c Firmware
Draytek vigorap 918r Firmware
Draytek vigorap 960c Firmware
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-24T19:01:02.459Z

Reserved: 2026-08-08T16:37:44.517Z

Link: CVE-2026-71912

cve-icon Vulnrichment

Updated: 2026-08-24T19:00:52.221Z

cve-icon NVD

Status : Received

Published: 2026-08-24T18:17:03.110

Modified: 2026-08-24T19:16:52.067

Link: CVE-2026-71912

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-24T19:00:05Z

Weaknesses