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CVE-2026-113393

DrayTek Vigor2960 commonupload mainfunction.cgi unrestricted upload

MEDIUM
6.3
CVSS Score
Published: October 20, 2026 at 01:15 PM UTC
Updated: October 20, 2026 at 07:27 PM UTC
1 product affected across 1 vendorVIGOR2960 Firmware

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A vulnerability was determined in DrayTek Vigor2960 1.5.1.6 Revision 8218. This issue affects some unknown processing of the file /cgi-bin/mainfunction.cgi of the component commonupload. Executing a manipulation of the argument upload_path/upload_name can lead to unrestricted upload. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 1.5.1.7 is capable of addressing this issue. It is advisable to upgrade the affected component. 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

VIGOR2960 Firmware· Draytek
90%
1.5.1.6 Revision 8218
Vendor states this is fixed in 1.5.1.7 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/422669
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/422669/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-113393
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/992246
Exploit
Source: cverecord
https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0010-authenticated-commonupload-arbitrary-file-clobber
Patch
Source: cverecord
https://fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.7/Vigor2960_v1.5.1.7.zip

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-434CWE-284

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