CVE-2026-9459

HIGH 8.8

Edimax EW-7438RPn formConnectionSetting stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

13th

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.

CWE	CWE-121 CWE-119
Vendor	edimax
Product	ew-7438rpn
Published	May 25, 2026
Last Updated	May 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Edimax / EW-7438RPn

1.31

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/365440 vuldb.com: https://vuldb.com/vuln/365440/cti vuldb.com: https://vuldb.com/submit/813896 github.com: https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_12/12.md

Credits

🔍 Buoy (VulDB User) VulDB CNA Team