5.3
MEDIUM CVSS 4.0
CVE-2026-111548
Moxa Wireless Device Server Stack-Based Buffer Overflow
Description

A stack-based buffer overflow vulnerability exists in the web management interface of affected Moxa wireless device servers. An authenticated remote attacker with low privileges could exploit insufficient bounds checking of user-supplied input, causing the web management service to become unresponsive. Restoring the service requires power cycling the affected device, while other device functions remain operational.

INFO

Published Date :

Oct. 27, 2026, 11:17 a.m.

Last Modified :

Oct. 27, 2026, 11:17 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-111548 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Moxa nport_w2150a-w4_w2250a-w4_series
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 MEDIUM 2e0a0ee2-d866-482a-9f5e-ac03d156dbaa
CVSS 4.0 MEDIUM [email protected]
Solution
Patch buffer overflow vulnerability by updating device firmware. This prevents unresponsiveness and ensures service continuity.
  • Update the firmware on affected devices.
  • Apply vendor-provided security patches.
  • Restrict access to the web management interface.
  • Monitor device services for unresponsiveness.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-111548.

URL Resource
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261250-cve-2026-111548-stack-buffer-overflow-vulnerability-in-wireless-device-servers
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-111548 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-111548 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-111548 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-111548 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 27, 2026

    Action Type Old Value New Value
    Added Description A stack-based buffer overflow vulnerability exists in the web management interface of affected Moxa wireless device servers. An authenticated remote attacker with low privileges could exploit insufficient bounds checking of user-supplied input, causing the web management service to become unresponsive. Restoring the service requires power cycling the affected device, while other device functions remain operational.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-121
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/111xxx/CVE-2026-111548.json">CVE-2026-111548</a>
    Added Reference https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261250-cve-2026-111548-stack-buffer-overflow-vulnerability-in-wireless-device-servers
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.