CVE-2026-4183: D-Link DIR-816 goahead form2WlanBasicSetup.cgi stack-based overflow

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-16 · updated 2026-06-17
Weakness: CWE-119

Description

A security vulnerability has been detected in D-Link DIR-816 1.10CNB05. Affected is an unknown function of the file /goform/form2WlanBasicSetup.cgi of the component goahead. Such manipulation of the argument pskValue leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

D-Link DIR-816: 1.10cnb05

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_87/87.md
https://vuldb.com/?ctiid.351087
https://vuldb.com/?id.351087
https://vuldb.com/?submit.769831
https://www.dlink.com/

Get alerted when CVE-2026-4183 or the next vulnerability affects your stack