CVE-2026-4181
D-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflow
- State
- Published
- Severity
- 9.3 Critical
- Published
- Mar 15, 2026
- Updated
- Mar 16, 2026
- Reserved
- Mar 14, 2026
Description
A security flaw has been discovered in D-Link DIR-816 1.10CNB05. This affects an unknown function of the file /goform/form2RepeaterStep2.cgi of the component goahead. The manipulation of the argument key1/key2/key3/key4/pskValue results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.8 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
DIR-816D-Link |
|
References
- VDB-351085 | D-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflowvdb-entrytechnical-description
- VDB-351085 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #769829 | D-Link DIR816 1.10CNB05 Stack-based Buffer Overflowthird-party-advisory
- https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.mdexploit
- https://www.dlink.com/product
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