CVE-2026-4181

Name: CVE-2026-4181
Creator: NVD / NIST
Published: 2026-03-16T14:19:58.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.9/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2026-4181 is a high-severity vulnerability rated 8.9/10 on the CVSS scale. 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. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.9/10

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/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

EPSS Probability

1.18%

63.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dir-816 Firmware	1.10cnb05

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.351085Permissions Required, VDB Entry
https://vuldb.com/?id.351085Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769829Third Party Advisory, VDB Entry
https://www.dlink.com/Product

Timeline

Published: Mar 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-4181?

How severe is CVE-2026-4181?

CVE-2026-4181 has a CVSS score of 8.9/10 (HIGH severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-4181?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-4181?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST