CVE-2026-3978
8.8 · HIGHOverview
CVE-2026-3978 is a high-severity vulnerability affecting dlink dir-513_firmware. It was published on March 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from dlink. Update dir-513_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
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Frequently Asked Questions
What is CVE-2026-3978?
CVE-2026-3978 is a high-severity vulnerability affecting dlink dir-513_firmware. It was published on March 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-3978?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-3978?
Check the references section for vendor advisories and patches from dlink. Update dir-513_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-3978?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-3978 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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