OS command injection in Siemens SINEC NMS
Priority LOW 37CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- 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
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2). The affected application incorrectly neutralizes special elements when creating batch operations which could lead to command injection. An authenticated remote attacker with administrative privileges could exploit this vulnerability to execute arbitrary code on the system with system privileges.
Why it matters now
EPSS 0.02672 85th 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 |
|---|---|---|---|---|---|
| Siemens | SINEC NMS | All versions < V1.0 SP2 | — | No fix listed | CNA |
- SINEC NMS VendorSiemens Affected All versions < V1.0 SP2 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:* | before 1.0 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_network_management_system:1.0:-:*:*:*:*:*:* | 1.0 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_network_management_system:1.0:sp1:*:*:*:*:*:* | 1.0 sp1 | Vulnerable | Siemens |
- cpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:* Versions before 1.0 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_network_management_system:1.0:-:*:*:*:*:*:* Versions 1.0 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_network_management_system:1.0:sp1:*:*:*:*:*:* Versions 1.0 sp1 Vulnerable ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33721
- 2026-10-03 Alias added: GHSA-63f9-382x-9vr8
References
More Siemens Sinec Network Management System vulnerabilities
- TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
- TI-2021-15262 Path traversal in Siemens SINEC NMS CVSS 3.1HIGH 7.7
- TI-2020-15474 Path traversal in Siemens SINEC NMS CVSS 3.1HIGH 8.1
- TI-2022-09004 Improper privilege management in Siemens SINEC NMS CVSS 3.1HIGH 8.8
- TI-2022-08164 SQL injection in Siemens SINEC NMS CVSS 3.1HIGH 7.2
- TI-2021-15263 Cross-site request forgery in Siemens SINEC NMS CVSS 3.1HIGH 8.8
Sources
- CVE-2021-33721 · CVE Program
- CVE-2021-33721 · NVD
- FIRST EPSS
- GHSA-63f9-382x-9vr8 · GitHub Advisory Database · CC BY 4.0
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