CVE-2026-108892
Received Received - Intake

Stack-Based Buffer Overflow in Linksys E1700 Firmware

Vulnerability report for CVE-2026-108892, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-12

Last updated on: 2026-10-12

Assigner: VulDB

Description

A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects the function ssid1MACFilter of the file /goform/ssid1MACFilter of the component Mac Filter. This manipulation of the argument newap_text_%d causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-12
Last Modified
2026-10-12
Generated
2026-10-12
AI Q&A
2026-10-12
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Linksys E1700 1.0.0.4.003

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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).

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-108892 is a stack-based buffer overflow vulnerability in Linksys E1700 routers running firmware version 1.0.0.4.003. It occurs in the ssid1MACFilter function when processing the newap_text_%d parameter. An attacker can send a specially crafted, overly long input to trigger a buffer overflow, potentially allowing arbitrary code execution or denial of service.

Detection Guidance

To detect this vulnerability, monitor network traffic for unusually long HTTP requests targeting the /goform/ssid1MACFilter endpoint. Check for crashes or unresponsiveness in Linksys E1700 routers. Use tools like Wireshark to inspect malformed packets with excessive input in the newap_text_%d parameter.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary code on the affected router or cause it to crash, disrupting network services. An attacker could gain control of the device, intercept network traffic, or use it as a foothold to attack other systems on the network.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling remote code execution on affected Linksys routers. A successful exploit may allow unauthorized access to network traffic, sensitive data transmission, or device control, which could violate data protection requirements under these regulations.

Mitigation Strategies

Immediately disable remote administration on the router if enabled. Block external access to the /goform/ssid1MACFilter endpoint via firewall rules. Update the router firmware if a patch is released. Consider replacing the device if no updates are available, as the vendor did not respond to disclosure.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-108892. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart