OS command injection in NEC Corporation UNIVERGE SV9500/SV8500 series
Priority MEDIUM 46CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
UNIVERGE SV9500 series from V1 to V7and SV8500 series from S6 to S8 allows an attacker to execute arbitrary OS commands or cause a denial-of-service (DoS) condition by sending a specially crafted request to a specific URL.
Why it matters now
EPSS 0.01825 78th 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 Corporation | UNIVERGE SV9500/SV8500 series | SV9500 series from V1 to V7and SV8500 series from S6 to S8 | — | No fix listed | CNA |
- UNIVERGE SV9500/SV8500 series VendorNEC Corporation Affected SV9500 series from V1 to V7and SV8500 series from S6 to S8 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:nec:univerge_sv9500_firmware:*:*:*:*:*:*:*:* | v1 – v7 | Vulnerable | NEC Corporation |
| cpe:2.3:h:nec:univerge_sv9500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Corporation |
| cpe:2.3:o:nec:univerge_sv8500_firmware:*:*:*:*:*:*:*:* | s6 – s8 | Vulnerable | NEC Corporation |
| cpe:2.3:h:nec:univerge_sv8500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Corporation |
- cpe:2.3:o:nec:univerge_sv9500_firmware:*:*:*:*:*:*:*:* Versions v1 – v7 Vulnerable ·NEC Corporation
- cpe:2.3:h:nec:univerge_sv9500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Corporation
- cpe:2.3:o:nec:univerge_sv8500_firmware:*:*:*:*:*:*:*:* Versions s6 – s8 Vulnerable ·NEC Corporation
- cpe:2.3:h:nec:univerge_sv8500:-:*:*:*:*:*:*:* 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-2020-5685
- 2026-10-03 Alias added: GHSA-cchm-6hjg-chgx
References
More NEC Corporation Univerge Sv8500 Firmware vulnerabilities
- TI-2020-04647 Improper authentication in NEC Corporation UNIVERGE SV9500/SV8500 series CVSS 3.1HIGH 7.5
Sources
- CVE-2020-5685 · CVE Program
- CVE-2020-5685 · NVD
- FIRST EPSS
- GHSA-cchm-6hjg-chgx · 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