NPort W2150A/W2250A Series Web Server Stack-based Buffer Overflow Vulnerability
Priority MEDIUM 43CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A stack-based buffer overflow in the built-in web server in Moxa NPort W2150A/W2250A Series firmware version 2.3 and prior allows a remote attacker to exploit the vulnerability by sending crafted payload to the web service. Successful exploitation of the vulnerability could result in denial of service.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00661 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Moxa | NPort W2150A/W2250A Series | 1.0 – 2.3 | — | No fix listed | CNA |
- NPort W2150A/W2250A Series VendorMoxa Affected 1.0 – 2.3 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:nport_w2150a_firmware:*:*:*:*:*:*:*:* | up to 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_w2150a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_w2250a_firmware:*:*:*:*:*:*:*:* | up to 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_w2250a:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_w2150a-t_firmware:*:*:*:*:*:*:*:* | up to 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_w2150a-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:nport_w2250a-t_firmware:*:*:*:*:*:*:*:* | up to 2.3 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:nport_w2250a-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:nport_w2150a_firmware:*:*:*:*:*:*:*:* Versions up to 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_w2150a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_w2250a_firmware:*:*:*:*:*:*:*:* Versions up to 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_w2250a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_w2150a-t_firmware:*:*:*:*:*:*:*:* Versions up to 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_w2150a-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:nport_w2250a-t_firmware:*:*:*:*:*:*:*:* Versions up to 2.3 Vulnerable ·Moxa
- cpe:2.3:h:moxa:nport_w2250a-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-1220
- 2026-10-03 Alias added: GHSA-h7pr-3fcx-999q
- 2026-10-07 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2024-1220 · CVE Program
- CVE-2024-1220 · NVD
- FIRST EPSS
- GHSA-h7pr-3fcx-999q · GitHub Advisory Database · CC BY 4.0
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