How to fix EUVD-2026-21307?

Within 24 hours: Inventory all D-Link DIR-513 1.10 devices on the network and isolate or disable any units found. Within 7 days: Implement network segmentation to restrict management access to DIR-513 devices and enforce strong authentication policies to limit credential compromise. Within 30 days: Replace all DIR-513 units with supported router models from an active vendor; if immediate replacement is unavailable, air-gap affected devices or place behind a monitored network boundary with restricted outbound access.

Is Dir 513 affected by EUVD-2026-21307?

CVE-2026-6012 affects end-of-life D-Link DIR-513 wireless routers, allowing authenticated attackers with low-privilege credentials to execute arbitrary code remotely through a buffer overflow vulnerability.

EUVD-2026-21307

| CVE-2026-6012 HIGH

2026-04-10 VulDB

GHSA-x6gx-rmhg-wc3f

7.4

CVSS 4.0

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

PoC Detected

Apr 10, 2026 - 05:16 vuln.today

Public exploit code

Analysis Generated

Apr 10, 2026 - 04:45 vuln.today

EUVD ID Assigned

Apr 10, 2026 - 04:45 euvd

EUVD-2026-21307

CVE Published

Apr 10, 2026 - 04:00 nvd

HIGH 7.4

Description

A security vulnerability has been detected in D-Link DIR-513 1.10. This affects the function formSetPassword of the file /goform/formSetPassword of the component POST Request Handler. The manipulation of the argument curTime leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Analysis

Buffer overflow in D-Link DIR-513 1.10 formSetPassword function allows authenticated remote attackers to achieve arbitrary code execution with high confidentiality, integrity, and availability impact. Exploitation occurs through POST request manipulation of the curTime parameter in /goform/formSetPassword endpoint. …

Remediation

Within 24 hours: Inventory all D-Link DIR-513 1.10 devices on the network and isolate or disable any units found. Within 7 days: Implement network segmentation to restrict management access to DIR-513 devices and enforce strong authentication policies to limit credential compromise. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +37

POC: +20

EUVD-2026-21307 vulnerability details – vuln.today

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EUVD-2026-21307

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EUVD-2026-21307

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External POC / Exploit Code