High severity · published May 25, 2026
CVE-2026-9427
Edimax EW-7438RPn webs formWlSiteSurvey stack-based overflow
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
A flaw has been found in Edimax EW-7438RPn 1.31. This impacts the function formWlSiteSurvey of the file /goform/formWlSiteSurvey of the component webs. This manipulation of the argument selSSID/submit-url causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EW
EW-7438RPn · Edimax
1.31 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9427
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9427
github.com
https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_11/11.md
vuldb.com
https://vuldb.com/submit/813895
vuldb.com
https://vuldb.com/vuln/365408
vuldb.com
https://vuldb.com/vuln/365408/cti
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