CVE-2026-113393
DrayTek Vigor2960 commonupload mainfunction.cgi unrestricted upload
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 20, 2026
- Updated
- Oct 20, 2026
- Reserved
- Oct 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Vigor2960DrayTek |
|
References
- VDB-422669 | DrayTek Vigor2960 commonupload mainfunction.cgi unrestricted uploadvdb-entrytechnical-description
- VDB-422669 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-113393 | CVE Analysis and Reportthird-party-advisory
- Submit #992246 | DrayTek Vigor2960 Vigor2960 1.5.1.6 (revision 8218) Authenticated commonupload Arbitrary File Clobber and Command Inthird-party-advisory
- https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0010-authenticated-commonupload-arbitrary-file-clobberexploit
- https://fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.7/Vigor2960_v1.5.1.7.zippatch
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