CVE-2025-2550: A vulnerability was found in D-Link DIR-618 and DIR-605L 2.02/3.02 and classified as problematic

Routine

MEDIUM 4.3MITIGATEMITIGATE

CVE-2025-2550 is a medium-severity flaw (CVSS 4.3) affecting dir-618 firmware, dir-605l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in D-Link DIR-618 and DIR-605L 2.02/3.02 and classified as problematic. Affected by this issue is some unknown functionality of the file /goform/formSetDDNS of the component DDNS Service. The manipulation leads to improper access controls. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer sup

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-266, CWE-284
Published	2025-03-20
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: dlink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-20 17:15 UTCPublished CVE record published
2026-06-17 09:07 UTCUpdated Record last modified

dlink dir-618 firmware MITIGATE

Affected: 2.02

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.02

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.

dlink dir-605l firmware MITIGATE

Affected: 3.02

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.02

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-2025-2550?

dir-618 firmware: mitigate or apply the listed mitigation; dir-605l firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-2550 being exploited?

CVE-2025-2550 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-2025-2550 affect?

CVE-2025-2550 affects dir-618 firmware, dir-605l firmware. Severity is medium (CVSS 4.3). A vulnerability was found in D-Link DIR-618 and DIR-605L 2.02/3.02 and classified as problematic. Affected by this issue is some unknown functionality of the file /goform/formSetDDNS of the component DDNS Service. The manipulation leads to

How urgent is CVE-2025-2550?

Priority 34/100. Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2025-2553 MEDIUM 4.3 MITIGATE MITIGATE A vulnerability was found in D-Link DIR-618 and DIR-605L 2.02/3.02
CVE-2025-2552 MEDIUM 4.3 MITIGATE MITIGATE A vulnerability was found in D-Link DIR-618 and DIR-605L 2.02/3.02
CVE-2025-2551 MEDIUM 4.3 MITIGATE MITIGATE A vulnerability was found in D-Link DIR-618 and DIR-605L 2.02/3.02
CVE-2025-2549 MEDIUM 4.3 MITIGATE MITIGATE A vulnerability has been found in D-Link DIR-618 and DIR-605L 2.02/3.02 and classified as problematic
CVE-2025-2548 MEDIUM 4.3 MITIGATE MITIGATE A vulnerability, which was classified as problematic, was found in D-Link DIR-618 and DIR-605L 2.02/3.02

References

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