CVE-2026-4181
D-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflow
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.
INFO
Published Date :
March 16, 2026, 2:19 p.m.
Last Modified :
April 6, 2026, 2:12 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Replace unsupported D-Link router.
- Apply vendor patches when available.
- Disable remote management features.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-4181.
| URL | Resource |
|---|---|
| https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.md | Exploit Third Party Advisory |
| https://vuldb.com/?ctiid.351085 | Permissions Required VDB Entry |
| https://vuldb.com/?id.351085 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.769829 | Third Party Advisory VDB Entry |
| https://www.dlink.com/ | Product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-4181 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-4181
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-4181 vulnerability anywhere in the article.
-
Daily CyberSecurity
Weekly Threat Intelligence Briefing: Chrome Zero-Days, SolarWinds RCE, and a Surge in Critical PoCs
The Executive Summary Over the past seven days, our CVE Watchtower intercepted 1,388 new vulnerabilities, highlighting a relentless week in the cybersecurity landscape. While the sheer volume is high, ... Read more
The following table lists the changes that have been made to the
CVE-2026-4181 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
Apr. 06, 2026
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 19, 2026
Action Type Old Value New Value Added CWE CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-816_firmware:1.10cnb05:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-816:-:*:*:*:*:*:*:* Added Reference Type VulDB: https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.md Types: Exploit, Third Party Advisory Added Reference Type VulDB: https://vuldb.com/?ctiid.351085 Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://vuldb.com/?id.351085 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.769829 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://www.dlink.com/ Types: Product -
New CVE Received by [email protected]
Mar. 16, 2026
Action Type Old Value New Value Added Tag unsupported-when-assigned Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CWE CWE-119 Added CWE CWE-121 Added Reference https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.md Added Reference https://vuldb.com/?ctiid.351085 Added Reference https://vuldb.com/?id.351085 Added Reference https://vuldb.com/?submit.769829 Added Reference https://www.dlink.com/