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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.

PUBLISHED Reserved 2026-05-24 | Published 2026-05-25 | Updated 2026-05-26 | Assigner VulDB




HIGH: 8.7CVSS: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
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Stack-based Buffer Overflow

Memory Corruption

Product status

1.31
affected

Timeline

2026-05-24:Advisory disclosed
2026-05-24:VulDB entry created
2026-05-24:VulDB entry last update

Credits

Buoy (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/365440 (VDB-365440 | Edimax EW-7438RPn formConnectionSetting stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/365440/cti (VDB-365440 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/813896 (Submit #813896 | Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow) third-party-advisory

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

cve.org (CVE-2026-9459)

nvd.nist.gov (CVE-2026-9459)

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