CVE-2026-3978 Details
Description
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.
A stack-based buffer overflow vulnerability has been identified in the D-Link DIR-513 router, specifically in version 1.10. The issue arises within the 'formEasySetupWizard3' function of the '/goform/formEasySetupWizard3' file. The vulnerability is triggered by manipulating the 'wan_connected' parameter, which is processed by the 'boa' web server component. This flaw allows for remote exploitation, potentially leading to unauthorized code execution or a denial-of-service condition.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Litengzheng/vul_db/blob/main/Dir513/vul_21/README.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.350413 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.350413 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.769586 | [email protected] | Third Party AdvisoryVDB Entry |
| https://www.dlink.com/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| dlink dir-513 firmware | 1.10 |
CPE
Remediation
| |
| dlink dir-513 | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 16, 2026 | Initial Analysis | [email protected] |
| Mar 12, 2026 | New CVE Received | [email protected] |