Vulnerability · Published May 25, 2026 · Assigned by VulDB

CVE-2026-9463Edimax EW-7438RPn formLicence stack-based overflow

High 8.8

In plain English

A high-severity stack 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 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.6%top 51.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A flaw has been found in Edimax EW-7438RPn 1.31. Affected by this issue is the function formLicence of the file /goform/formLicence. This manipulation of the argument submit-url causes stack-based buffer overflow. The attack may be initiated 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.

Affected products (as reported)

Vendor	Product	Versions
Edimax	EW-7438RPn	1.31

Weakness: CWE-121, 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-365444 | Edimax EW-7438RPn formLicence stack-based overflow vdb-entry, technical-description
VDB-365444 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #813900 | Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_16/16.md exploit