CVE-2026-3978 HIGH

CVE-2026-3978: D-Link DIR-513 formEasySetupWizard3 stack-based overflow

Vendor D-Link
Product DIR-513
Weakness CWE-121
Published March 12, 2026
Last update March 12, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was detected in D-Link DIR-513 1.10. The impacted element is an unknown function of the file /goform/formEasySetupWizard3. The manipulation of the argument wan_connected results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used.

Key dates

02Disclosure timeline

March 12, 2026 CVE published
March 12, 2026 Record updated