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CVE-2026-4183

D-Link DIR-816 goahead form2WlanBasicSetup.cgi stack-based overflow

CVSS 9.3 CRITICALEPSS 1.2%CWE-119CWE-121
Vexday Risk Score
48Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 9.3EPSS 1.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
15 Mar 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
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
Affected products
D-Link · DIR-816
public PoCs found — 1
cve_referencegithub.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_87/87.mdunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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