NEC UM8000, UM4730 and prior non-InMail voicemail systems with all known software…
Priority MEDIUM 41CWE-307Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-307.
Summary
NEC UM8000, UM4730 and prior non-InMail voicemail systems with all known software versions may permit an infinite number of login attempts in the telephone user interface (TUI), effectively allowing brute force attacks.
Why it matters now
EPSS 0.00999 62nd 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:o:nec:um8000_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | NEC Corporation |
| cpe:2.3:h:nec:um8000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Corporation |
| cpe:2.3:o:nec:um4730_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | NEC Corporation |
| cpe:2.3:h:nec:um4730:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Corporation |
- cpe:2.3:o:nec:um8000_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·NEC Corporation
- cpe:2.3:h:nec:um8000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Corporation
- cpe:2.3:o:nec:um4730_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·NEC Corporation
- cpe:2.3:h:nec:um4730:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-20031
- 2026-10-03 Alias added: GHSA-xmx2-vxw5-6rg6
References
Advisory 1
Sources
- CVE-2019-20031 · CVE Program
- CVE-2019-20031 · NVD
- FIRST EPSS
- GHSA-xmx2-vxw5-6rg6 · 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