CVE-2026-4486

D-Link Dir-513 Firmware buffer overflow

8.8 HIGHPublic exploitEPSS 1.07%

Published20 Mar 2026

Description

A vulnerability was found in D-Link DIR-513 1.10. This affects the function formEasySetPassword of the file /goform/formEasySetPassword of the component Web Service. The manipulation of the argument curTime results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

D-Link Dir-513 Firmware1.10

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://github.com/InfiniteLin/Lin-s-CVEdb/blob/main/DIR-513/formEasySetPassword/formEasySetPassword.mdExploitThird Party Advisory
https://github.com/InfiniteLin/Lin-s-CVEdb/blob/main/DIR-513/formEasySetPassword/poc.pyExploit
https://vuldb.com/?ctiid.352009Permissions RequiredVDB Entry
https://vuldb.com/?id.352009Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.773537Issue TrackingVDB Entry
https://vuldb.com/?submit.773566Third Party AdvisoryVDB Entry
https://www.dlink.com/Product

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2026-4486 being actively exploited?

CVE-2026-4486 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.07%.

How severe is CVE-2026-4486?

CVE-2026-4486 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.07% probability of exploitation.

Which products are affected by CVE-2026-4486?

Affected products include D-Link Dir-513 Firmware.

How do I fix CVE-2026-4486?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-4486 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.