CVE-2026-9459 - Edimax EW-7438RPn formConnectionSetting stack-based overflow

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HIGH

Edimax EW-7438RPn formConnectionSetting stack-based overflow

Published May 25, 2026

8.7

HIGH

CVSS 4.0

EPSS 0.80%

Description

A security flaw has been discovered in Edimax EW-7438RPn 1.31. This affects the function formConnectionSetting of the file /goform/formConnectionSetting. Performing a manipulation of the argument max_Conn/timeOut results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Vendor Edimax Product EW-7438RPn Default
n/a
- Version
  1.31
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Edimax

EW-7438RPn

n/a

Version	Status	Constraints
1.31	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-119

Buffer Overflow

CWE-121

References (5)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31675
Advisory
https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_12/12.md
exploit
https://vuldb.com/submit/813896
third-party-advisory
https://vuldb.com/vuln/365440
vdb-entrytechnical-description
https://vuldb.com/vuln/365440/cti
signaturepermissions-required

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31675		Advisory
https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_12/12.md		exploit
https://vuldb.com/submit/813896		third-party-advisory
https://vuldb.com/vuln/365440		vdb-entrytechnical-description
https://vuldb.com/vuln/365440/cti		signaturepermissions-required