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CVE-2026-71912— DrayTek VigorAP Multiple Models Buffer Overflow via apautotest

Quick assessment

Affected
DrayTek Corporation VigorAP 918R
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DrayTek VigorAP是中国DrayTek公司的一款无线接入点设备。 DrayTek VigorAP存在缓冲区错误漏洞，该漏洞源于apautotest函数在涉及CMD6字段的内存复制操作时缺少长度检查，导致缓冲区溢出，具有设备Web管理界面有效管理凭据的远程攻击者可利用特制输入触发拒绝服务或执行任意命令。

CVSS 7.2 · High EPSS 0.68% · P52

Affected Version Matrix 6

VendorProduct Version RangeStatus
DrayTek Corporation VigorAP 1060C < 1.4.12 affected
DrayTek Corporation VigorAP 903 < 1.4.22 affected
DrayTek Corporation VigorAP 906 < 1.4.13 affected
DrayTek Corporation VigorAP 912C < 1.4.15 affected
DrayTek Corporation VigorAP 918R < 1.4.11 affected
DrayTek Corporation VigorAP 960C < 1.4.12 affected
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I. Basic Information for CVE-2026-71912

Vulnerability Information
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Vulnerability Title
DrayTek VigorAP Multiple Models Buffer Overflow via apautotest
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
DrayTek VigorAP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DrayTek VigorAP是中国DrayTek公司的一款无线接入点设备。 DrayTek VigorAP存在缓冲区错误漏洞，该漏洞源于apautotest函数在涉及CMD6字段的内存复制操作时缺少长度检查，导致缓冲区溢出，具有设备Web管理界面有效管理凭据的远程攻击者可利用特制输入触发拒绝服务或执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
DrayTek Corporation VigorAP 918R 0 ~ 1.4.11 -
DrayTek Corporation VigorAP 960C 0 ~ 1.4.12 -
DrayTek Corporation VigorAP 1060C 0 ~ 1.4.12 -
DrayTek Corporation VigorAP 906 0 ~ 1.4.13 -
DrayTek Corporation VigorAP 912C 0 ~ 1.4.15 -
DrayTek Corporation VigorAP 903 0 ~ 1.4.22 -

II. Public POCs for CVE-2026-71912

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III. Intelligence Information for CVE-2026-71912

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Vendor Advisories for CVE-2026-71912 (2)

Same Patch Batch · DrayTek Corporation · 2026-08-24 · 40 CVEs total

CVE-2026-71914 9.8 CRITICAL DrayTek VigorAP Multiple Models Pre-Authentication OS Command Injection via dray_apm
CVE-2026-71921 9.8 CRITICAL DrayTek VigorSwitch Multiple Models Pre-Authentication OS Command Injection via setget.cgi
CVE-2026-71933 9.1 CRITICAL DrayTek VigorSwitch Multiple Models Missing Authorization in Syslog Functions
CVE-2026-71922 7.5 HIGH DrayTek VigorSwitch Multiple Models Pre-Authentication NULL Pointer Dereference via setget
CVE-2026-71915 7.2 HIGH DrayTek VigorSwitch Multiple Models OS Command Injection via jsonstatus
CVE-2026-71905 7.2 HIGH DrayTek VigorAP Multiple Models OS Command Injection via ExportSettings
CVE-2026-71919 7.2 HIGH DrayTek VigorSwitch Multiple Models OS Command Injection via sysreboot
CVE-2026-71910 7.2 HIGH DrayTek VigorAP Multiple Models OS Command Injection via apautotest
CVE-2026-71906 7.2 HIGH DrayTek VigorAP Multiple Models OS Command Injection via setLan
CVE-2026-71917 7.2 HIGH DrayTek VigorSwitch Multiple Models OS Command Injection via pingtrace
CVE-2026-71907 7.2 HIGH DrayTek VigorAP Multiple Models OS Command Injection via setcamset
CVE-2026-71934 7.2 HIGH DrayTek VigorSwitch Multiple Models Buffer Overflow via pingtrace
CVE-2026-71925 7.2 HIGH DrayTek VigorSwitch Multiple Models OS Command Injection via getDetail
CVE-2026-71923 7.2 HIGH DrayTek VigorSwitch Multiple Models OS Command Injection via auth_set
CVE-2026-71935 7.2 HIGH DrayTek VigorSwitch Multiple Models Buffer Overflow via webBackupAction
CVE-2026-71941 7.2 HIGH DrayTek VigorSwitch Multiple Models Buffer Overflow via diag_logmail
CVE-2026-71938 7.2 HIGH DrayTek VigorSwitch Multiple Models Buffer Overflow via switch_lan_gvrp
CVE-2026-71939 7.2 HIGH DrayTek VigorSwitch Multiple Models Buffer Overflow via acl_general_setup Add ACE
CVE-2026-71918 7.2 HIGH DrayTek VigorSwitch Multiple Models OS Command Injection via webBackupAction
CVE-2026-71909 7.2 HIGH DrayTek VigorAP Multiple Models OS Command Injection via InquierTime

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: VigorAP 918R
Same vendor: DrayTek Corporation
Same weakness: CWE-120