Improper authentication in Moxa OnCell G3100-HSPA Series
Priority MEDIUM 45CWE-565Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.
Why it matters now
EPSS 0.01561 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Moxa OnCell G3100-HSPA Series | Moxa OnCell G3100-HSPA Series | — | No fix listed | CNA |
- Moxa OnCell G3100-HSPA Series Vendor— Affected Moxa OnCell G3100-HSPA Series Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:moxa:oncell_g3110-hspa_firmware:*:*:*:*:*:*:*:* | up to 1.4 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:oncell_g3110-hspa:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:oncell_g3110-hspa-t_firmware:*:*:*:*:*:*:*:* | up to 1.4 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:oncell_g3110-hspa-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:oncell_g3150-hspa_firmware:*:*:*:*:*:*:*:* | up to 1.4 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:oncell_g3150-hspa:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
| cpe:2.3:o:moxa:oncell_g3150-hspa-t_firmware:*:*:*:*:*:*:*:* | up to 1.4 | Vulnerable | Moxa |
| cpe:2.3:h:moxa:oncell_g3150-hspa-t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Moxa |
- cpe:2.3:o:moxa:oncell_g3110-hspa_firmware:*:*:*:*:*:*:*:* Versions up to 1.4 Vulnerable ·Moxa
- cpe:2.3:h:moxa:oncell_g3110-hspa:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:oncell_g3110-hspa-t_firmware:*:*:*:*:*:*:*:* Versions up to 1.4 Vulnerable ·Moxa
- cpe:2.3:h:moxa:oncell_g3110-hspa-t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:oncell_g3150-hspa_firmware:*:*:*:*:*:*:*:* Versions up to 1.4 Vulnerable ·Moxa
- cpe:2.3:h:moxa:oncell_g3150-hspa:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa
- cpe:2.3:o:moxa:oncell_g3150-hspa-t_firmware:*:*:*:*:*:*:*:* Versions up to 1.4 Vulnerable ·Moxa
- cpe:2.3:h:moxa:oncell_g3150-hspa-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-2018-5455
- 2026-10-03 Alias added: GHSA-xp2r-3x9c-rvxq
References
More Moxa Oncell G3110-hspa-t Firmware vulnerabilities
- TI-2018-03965 Memory corruption in Moxa OnCell G3100-HSPA Series CVSS 3.0HIGH 7.5
- TI-2018-03962 NULL pointer dereference in Moxa OnCell G3100-HSPA Series CVSS 3.0MEDIUM 6.5
Sources
- CVE-2018-5455 · CVE Program
- CVE-2018-5455 · NVD
- FIRST EPSS
- GHSA-xp2r-3x9c-rvxq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences