CVE-2026-111548

Quick assessment

Affected

Moxa NPort W2150A-W4/W2250A-W4 Series

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

受影响的 Moxa 无线设备服务器在其 Web 管理界面中存在基于栈的缓冲区溢出漏洞。拥有低权限的已认证远程攻击者可利用对用户输入数据的边界检查不足，导致 Web 管理服务无响应。恢复该服务需对受影响设备进行断电重启，而设备的其他功能在此期间仍可正常运行。

CVSS 5.3 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 3 AI

T1068.001 T1499.001 · OS Exhaustion Flood T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

栈缓冲区溢出

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Moxa	NPort W2150A-W4/W2250A-W4 Series	1.0 ~ 1.5	-

II. Public POCs for CVE-2026-111548

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-111548

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Other References for CVE-2026-111548 (1)

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261250-cve-2026-111548-stack-buffer-overflow-vulnerability-in-wireless-device-servers vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-111548

Same Patch Batch · Moxa · 2026-10-27 · 4 CVEs total

CVE-2026-111460	7.7 HIGH	Static HTTPS private key and CA private key in firmware in OnCell G3150A-LTE Series
CVE-2026-111459	7.6 HIGH	Unauthenticated server-supplied OpenVPN configuration in Moxa Remote Connect Suite (MRC Cl
CVE-2026-111461	7.5 HIGH	SMS upgrade argument reaches system() unescaped in OnCell G3150A-LTE Series

IV. Related Vulnerabilities

Same product: NPort W2150A-W4/W2250A-W4 Series

Same vendor: Moxa

Same weakness: CWE-121