Vulnerability · Published May 24, 2026 · Assigned by VulDB

CVE-2026-9345Edimax EW-7438RPn webs formWizSurvey buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in EW-7438RPn from Edimax. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 54.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in Edimax EW-7438RPn up to 1.31. This affects the function formWizSurvey of the file /goform/formWizSurvey of the component webs. Performing a manipulation of the argument ssid/manualssid/ip/mask/gateway results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Edimax	EW-7438RPn	1.01.11.21.31.41.51.61.7

Weakness: CWE-120, CWE-119 · Vector: 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

References

VDB-365308 | Edimax EW-7438RPn webs formWizSurvey buffer overflow vdb-entry, technical-description
VDB-365308 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #813886 | Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow third-party-advisory
Submit #811542 | EDIMAX EW-7438RPn Mini EW-7438RPn Mini Firmware 1.28a (Version : 1.28a) Buffer Overflow (Duplicate) third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_3/3.md exploit