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Critical 9.8Published Mar 15, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects D-Link DIR-816 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
9.8 CRITICAL (v3.1, CNA)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
Weakness (CWE)
CWE-121, CWE-119
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulDB
NVD analysis
Analyzed
Record last updated
Mar 16, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
D-Link DIR-816
d_link:dir_816 (from the name)
1.10CNB05
CNA record
dlink dir-816_firmware
dlink:dir-816_firmware
1.10cnb05
NVD

References

  • vdb-entry, technical-description, third-party-advisory
  • signature, permissions-required, vdb-entry
  • third-party-advisory, vdb-entry
  • exploit, third-party-advisory
  • product

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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