CVE-2026-9425
Deferred Deferred - Pending Action
Stack-Based Buffer Overflow in Edimax EW-7438RPn

Publication date: 2026-05-25

Last updated on: 2026-05-25

Assigner: VulDB

Description
A security vulnerability has been detected in Edimax EW-7438RPn 1.31. The impacted element is the function formWlanMP of the file /goform/formWlanMP. The manipulation of the argument ateFunc/ateGain/ateTxCount/ateChan/ateRate/ateMacID/e2pTxPower1/e2pTxPower2/e2pTxPower3/e2pTxPower4/e2pTxPower5/e2pTxPower6/e2pTxPower7/e2pTx2Power1/e2pTx2Power2/e2pTx2Power3/e2pTx2Power4/e2pTx2Power5/e2pTx2Power6/e2pTx2Power7/ateTxFreqOffset/ateMode/ateBW/ateAntenna/e2pTxFreqOffset/e2pTxPwDeltaB/e2pTxPwDeltaG/e2pTxPwDeltaMix/e2pTxPwDeltaN/readE2P leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2026-05-25
Last Modified
2026-05-25
Generated
2026-06-15
AI Q&A
2026-05-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-9425
EUVD
EUVD-2026-31629
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
edimax ew-7438rpn 1.31
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Impact Analysis

The vulnerability can be exploited remotely, which means an attacker could execute arbitrary code or cause a denial of service on the affected device. This could lead to unauthorized access, disruption of network services, or compromise of the device's integrity and confidentiality.

Executive Summary

This vulnerability exists in the Edimax EW-7438RPn device, specifically in the function formWlanMP within the file /goform/formWlanMP. It is caused by improper handling of multiple arguments, which leads to a stack-based buffer overflow. This means that an attacker can manipulate certain input parameters to overflow the memory buffer on the stack, potentially allowing remote exploitation.

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