CVE-2026-26732
Received Received - Intake

Stack-Based Buffer Overflow in TOTOLINK A3002RU VPN Parameters

Publication date: 2026-02-17

Last updated on: 2026-03-11

Assigner: MITRE

Description
TOTOLINK A3002RU V2.1.1-B20211108.1455 was discovered to contain a stack-based buffer overflow via the vpnUser or vpnPassword` parameters in the formFilter function.

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Meta Information

Published
2026-02-17
Last Modified
2026-03-11
Generated
2026-07-06
AI Q&A
2026-02-17
EPSS Evaluated
2026-07-05
NVD
CVE-2026-26732

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
totolink a3002ru_firmware 2.1.1-b20211108.1455

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Exploitability

CWE
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KEV
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CWE ID Description
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).
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability is a stack-based buffer overflow found in the TOTOLINK A3002RU router firmware version V2.1.1-B20211108.1455. It occurs via the vpnUser or vpnPassword parameters in the formFilter function.

Impact Analysis

A stack-based buffer overflow can allow an attacker to execute arbitrary code, potentially leading to unauthorized access, system crashes, or control over the affected device.

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