UNIVERGE Aspire series PBX (UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from…
Priority LOW 17Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
UNIVERGE Aspire series PBX (UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from 1.00 to 9.70, UNIVERGE SV9100 from 1.00 to 10.70, and SL2100 from 1.00 to 3.00) allows a remote authenticated attacker to cause system down and a denial of service (DoS) condition by sending a specially crafted command.
Why it matters now
EPSS 0.00952 61st 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 |
|---|---|---|---|---|---|
| NEC Platforms, Ltd. | UNIVERGE Aspire series PBX | UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from 1.00 to 9.70, UNIVERGE SV9100 from 1.00 to 10.70, and SL2100 from 1.00 to 3.00 | — | No fix listed | CNA |
- UNIVERGE Aspire series PBX VendorNEC Platforms, Ltd. Affected UNIVERGE Aspire WX from 1.00 to 3.51, UNIVERGE Aspire UX from 1.00 to 9.70, UNIVERGE SV9100 from 1.00 to 10.70, and SL2100 from 1.00 to 3.00 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:necplatforms:univerge_aspire_wx_firmware:*:*:*:*:*:*:*:* | 1.00 – 3.51 | Vulnerable | NEC Platforms, Ltd. |
| cpe:2.3:h:necplatforms:univerge_aspire_wx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Platforms, Ltd. |
| cpe:2.3:o:necplatforms:univerge_aspire_ux_firmware:*:*:*:*:*:*:*:* | 1.00 – 9.70 | Vulnerable | NEC Platforms, Ltd. |
| cpe:2.3:h:necplatforms:univerge_aspire_ux:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Platforms, Ltd. |
| cpe:2.3:o:necplatforms:univerge_sv9100_firmware:*:*:*:*:*:*:*:* | 1.00 – 10.70 | Vulnerable | NEC Platforms, Ltd. |
| cpe:2.3:h:necplatforms:univerge_sv9100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Platforms, Ltd. |
| cpe:2.3:o:necplatforms:sl2100_firmware:*:*:*:*:*:*:*:* | 1.00 – 3.00 | Vulnerable | NEC Platforms, Ltd. |
| cpe:2.3:h:necplatforms:sl2100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Platforms, Ltd. |
- cpe:2.3:o:necplatforms:univerge_aspire_wx_firmware:*:*:*:*:*:*:*:* Versions 1.00 – 3.51 Vulnerable ·NEC Platforms, Ltd.
- cpe:2.3:h:necplatforms:univerge_aspire_wx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Platforms, Ltd.
- cpe:2.3:o:necplatforms:univerge_aspire_ux_firmware:*:*:*:*:*:*:*:* Versions 1.00 – 9.70 Vulnerable ·NEC Platforms, Ltd.
- cpe:2.3:h:necplatforms:univerge_aspire_ux:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Platforms, Ltd.
- cpe:2.3:o:necplatforms:univerge_sv9100_firmware:*:*:*:*:*:*:*:* Versions 1.00 – 10.70 Vulnerable ·NEC Platforms, Ltd.
- cpe:2.3:h:necplatforms:univerge_sv9100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Platforms, Ltd.
- cpe:2.3:o:necplatforms:sl2100_firmware:*:*:*:*:*:*:*:* Versions 1.00 – 3.00 Vulnerable ·NEC Platforms, Ltd.
- cpe:2.3:h:necplatforms:sl2100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Platforms, Ltd.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20677
- 2026-10-03 Alias added: GHSA-xwf3-pcvx-xf5j
References
Sources
- CVE-2021-20677 · CVE Program
- CVE-2021-20677 · NVD
- FIRST EPSS
- GHSA-xwf3-pcvx-xf5j · 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