CVE-2026-9459

HIGH

Edimax EW-7438RPn formConnectionSetting stack-based overflow

Title source: cna

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.

References (4)

Core 4

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-365440 | Edimax EW-7438RPn formConnectionSetting stack-based overflow

https://vuldb.com/vuln/365440

Signature, Permissions Required signature permissions-required

VDB-365440 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/vuln/365440/cti

Third Party Advisory third-party-advisory

Submit #813896 | Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow

https://vuldb.com/submit/813896

Exploit exploit

https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_12/12.md

View Exploit ZIP pw:eip

Scores

CVSS v3 8.8

EPSS 0.0075

EPSS Percentile 50.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121

Status published

Products (1)

Edimax/EW-7438RPn 1.31

Published May 25, 2026

Tracked Since May 25, 2026