CVE-2026-120283
Received Received - Intake

Stack-Based Buffer Overflow in Linksys E8450 Router

Vulnerability report for CVE-2026-120283, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-11-02

Last updated on: 2026-11-02

Assigner: VulDB

Description

A vulnerability was identified in Linksys E8450 1.2.00.360516. Affected is the function strcpy of the file /www/cgi-bin/portal.cgi. Such manipulation of the argument hidden_timezone leads to stack-based buffer overflow. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Linksys E8450 1.2.00.360516

Helpful Resources

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-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.

Attack-Flow Graph

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Executive Summary

This vulnerability is a stack-based buffer overflow in the Linksys E8450 router firmware version 1.2.00.360516. It occurs in the strcpy function of the /www/cgi-bin/portal.cgi file when the hidden_timezone argument is manipulated. This allows remote attackers to execute arbitrary code on the device.

Impact Analysis

This vulnerability can allow remote attackers to gain control of your Linksys E8450 router. This could lead to unauthorized access to your network, interception of network traffic, or use of the router as a pivot point for further attacks on other devices in your network.

Mitigation Strategies

Immediately update the Linksys E8450 firmware to the latest available version to patch the strcpy vulnerability in /www/cgi-bin/portal.cgi. If no update is available, consider discontinuing use of the device or isolating it from the network to prevent remote exploitation.

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