Improper access control in Zyxel LTE3316-M604
Priority MEDIUM 50CWE-284Published · 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 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
A security misconfiguration vulnerability exists in the Zyxel LTE3316-M604 firmware version V2.00(ABMP.6)C0 due to a factory default misconfiguration intended for testing purposes. A remote attacker could leverage this vulnerability to access an affected device using Telnet.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00842 58th 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
- Total
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 |
|---|---|---|---|---|---|
| Zyxel | LTE3316-M604 | V2.00(ABMP.6)C0 | — | No fix listed | CNA |
- LTE3316-M604 VendorZyxel Affected V2.00(ABMP.6)C0 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:zyxel:lte3202-m437_firmware:1.00\(abwf.1\)c0:*:*:*:*:*:*:* | 1.00(abwf.1)c0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:lte3202-m437:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:lte3316-m604_firmware:2.00\(abmp.6\)c0:*:*:*:*:*:*:* | 2.00(abmp.6)c0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:lte3316-m604:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
- cpe:2.3:o:zyxel:lte3202-m437_firmware:1.00\(abwf.1\)c0:*:*:*:*:*:*:* Versions 1.00(abwf.1)c0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:lte3202-m437:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:lte3316-m604_firmware:2.00\(abmp.6\)c0:*:*:*:*:*:*:* Versions 2.00(abmp.6)c0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:lte3316-m604:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-22920
- 2026-10-03 Alias added: GHSA-wpqc-593w-375g
References
More Zyxel Lte3202-m437 Firmware vulnerabilities
- TI-2022-21187 Buffer overflow in Zyxel NR7101 firmware CVSS 3.1CRITICAL 9.8
- TI-2024-00753 Buffer overflow in Zyxel DX3300-T1 firmware CVSS 3.1MEDIUM 5.5
Sources
- CVE-2023-22920 · CVE Program
- CVE-2023-22920 · NVD
- FIRST EPSS
- GHSA-wpqc-593w-375g · 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