CVE-2026-111548

Stack Buffer Overflow in Moxa Wireless Device Server Web Interface

Published Oct 27, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Please refer to Moxa's security advisory: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261250-cve-2026-111548-stack-buffer-overflow-vulnerability-in-wireless-device-servers

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Stack Buffer Overflow in Moxa Wireless Device Server Web Interface
Type Values Removed Values 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.
First Time appeared Moxa
Moxa nport W2150a-w4 W2250a-w4 Series
Weaknesses CWE-121
CPEs cpe:2.3:a:moxa:nport_w2150a-w4_w2250a-w4_series:*:*:*:*:*:*:*:*
Vendors & Products Moxa
Moxa nport W2150a-w4 W2250a-w4 Series
References
Metrics cvssV4_0

{'score': 5.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Moxa
Published
Updated
Nov 4, 2026, 8:29 PM
Reserved
Oct 16, 2026, 10:17 AM
Status
Awaiting Analysis
Published
Oct 27, 2026, 11:17 AM
Modified
Nov 4, 2026, 9:17 PM