CVE-2026-6014: A flaw has been found in D-Link DIR-513 1.10

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HIGH 8.8MITIGATE

CVE-2026-6014 is a high-severity flaw (CVSS 8.8) affecting dir-513 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in D-Link DIR-513 1.10. This issue affects the function formAdvanceSetup of the file /goform/formAdvanceSetup of the component POST Request Handler. This manipulation of the argument webpage causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-119, CWE-120
Published	2026-04-10
Last modified	2026-10-26

Publisher (CNA): VulDB · Vendor: dlink

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-10 05:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

dlink dir-513 firmware MITIGATE

Affected: 1.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.10

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-6014?

dir-513 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-6014 being exploited?

CVE-2026-6014 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-6014 affect?

CVE-2026-6014 affects dir-513 firmware. Severity is high (CVSS 8.8). A flaw has been found in D-Link DIR-513 1.10. This issue affects the function formAdvanceSetup of the file /goform/formAdvanceSetup of the component POST Request Handler. This manipulation of the argument webpage causes buffer overflow. It

How urgent is CVE-2026-6014?

Priority 49/100. High severity; Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2026-6012 HIGH 8.8 MITIGATE A security vulnerability has been detected in D-Link DIR-513 1.10
CVE-2026-6013 HIGH 8.8 MITIGATE A vulnerability was detected in D-Link DIR-513 1.10

References

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