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CVE-2026-113395— DrayTek Vigor2960 swmconfigupload mainfunction.cgi cgiEscape path traversal

Quick assessment

Affected
DrayTek Vigor2960
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.

在 DrayTek Vigor2960 1.5.1.6（修订版 8218）中发现了一个安全漏洞。受影响的是 swmconfigupload 组件中位于 /cgi-bin/mainfunction.cgi 文件内的 cgiEscape 函数。通过对 multipart 参数进行操纵，可触发路径遍历漏洞。该漏洞可被远程利用，且利用代码已公开，可能被用于发起攻击。升级至 1.5.1.7 版本即可修复此问题，建议立即升级受影响组件。厂商说明如下："Vigor2960 1.5.1.7 已修复多个安全问题。由于 Vigor29

CVSS 7.4 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
DrayTek Vigor2960 1.5.1.6 Revision 8218 affected
1.5.1.7 unaffected
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I. Basic Information for CVE-2026-113395

Vulnerability Information
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Vulnerability Title
DrayTek Vigor2960 swmconfigupload mainfunction.cgi cgiEscape path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in DrayTek Vigor2960 1.5.1.6 Revision 8218. The affected element is the function cgiEscape of the file /cgi-bin/mainfunction.cgi of the component swmconfigupload. The manipulation of the argument multipart results in path traversal. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.5.1.7 is sufficient to fix this issue. The affected component should be upgraded. The vendor explains: "2960 1.5.1.7 has corrected many security issues. And 2960 is EoS with limited support, only major issues would be reviewed(e.g. unauthenticated vuln.)". This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
DrayTek Vigor2960 1.5.1.6 Revision 8218 cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-113395

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III. Intelligence Information for CVE-2026-113395

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Proof of Concept for CVE-2026-113395 (1)

Other References for CVE-2026-113395 (1)

Same Patch Batch · DrayTek · 2026-10-20 · 9 CVEs total

CVE-2026-113389 9.9 CRITICAL DrayTek Vigor2960 CGI Process mainfunction.cgi set_table command injection
CVE-2026-113390 9.9 CRITICAL DrayTek Vigor2960 CGI mainfunction.cgi sub_182B0 os command injection
CVE-2026-113391 9.9 CRITICAL DrayTek Vigor2960 Upload Endpoint mainfunction.cgi uploadlangs command injection
CVE-2026-113392 7.4 HIGH DrayTek Vigor2960 Apmupload mainfunction.cgi path traversal
CVE-2026-113394 7.4 HIGH DrayTek Vigor2960 mainfunction.cgi setSWMProfile path traversal
CVE-2026-113396 7.4 HIGH DrayTek Vigor2960 Rename Table mainfunction.cgi rename_table command injection
CVE-2026-113397 7.4 HIGH DrayTek Vigor2960 IPsec mainfunction.cgi ruequest_certificate command injection
CVE-2026-113393 6.3 MEDIUM DrayTek Vigor2960 commonupload mainfunction.cgi unrestricted upload

IV. Related Vulnerabilities

Same product: Vigor2960
Same vendor: DrayTek
Same weakness: CWE-22

V. Comments for CVE-2026-113395

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