ZyXEL P-660HW-T1 2 devices with ZyNOS firmware 3.40(AXH.0), PMG5318-B20A devices with…
Priority MEDIUM 51CWE-255Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
ZyXEL P-660HW-T1 2 devices with ZyNOS firmware 3.40(AXH.0), PMG5318-B20A devices with firmware 1.00AANC0b5, and NBG-418N devices have a default password of 1234 for the admin account, which allows remote attackers to obtain administrative access via unspecified vectors.
Why it matters now
EPSS 0.05731 93rd 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:zyxel:nbg-418n:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:p-660hw-t1_2:*:*:*:*:*:*:*:* | all versions | Running on | Zyxel |
| cpe:2.3:o:zyxel:zynos_firmware:3.40\(axh.0\):*:*:*:*:*:*:* | 3.40(axh.0) | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:pmg5318-b20a_firmware:v100aanc0b5:*:*:*:*:*:*:* | v100aanc0b5 | Vulnerable | Zyxel |
- cpe:2.3:h:zyxel:nbg-418n:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:p-660hw-t1_2:*:*:*:*:*:*:*:* Versions all versions Running on ·Zyxel
- cpe:2.3:o:zyxel:zynos_firmware:3.40\(axh.0\):*:*:*:*:*:*:* Versions 3.40(axh.0) Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:pmg5318-b20a_firmware:v100aanc0b5:*:*:*:*:*:*:* Versions v100aanc0b5 Vulnerable ·Zyxel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-6016
- 2026-10-03 Alias added: GHSA-666f-pfx4-5gvf
References
More Zyxel Nbg-418n vulnerabilities
- TI-2015-06056 Cross-site request forgery (CSRF) vulnerability on ZyXEL NBG-418N devices with firmware… CVSS 3.0HIGH 8.0
Sources
- CVE-2015-6016 · CVE Program
- CVE-2015-6016 · NVD
- FIRST EPSS
- GHSA-666f-pfx4-5gvf · 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