OS command injection in Siemens SINEC INS
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6). The application does not properly sanitize user input in the /api/sftp/uploadFiles endpoint, allowing the injection of shell command payloads via crafted directory names. These payloads are stored and executed when directory listings are retrieved. This could allow an authenticated remote attacker to execute arbitrary commands on the underlying operating system with the privileges of the affected service user (sinecins).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Siemens | SINEC INS | before V1.0 SP2 Update 6 | V1.0 SP2 Update 6 | Patch available | CNA |
- SINEC INS VendorSiemens Affected before V1.0 SP2 Update 6 Fixed in V1.0 SP2 Update 6 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:siemens:sinec_ins:*:-:*:*:*:*:*:* | up to 1.0 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:* | 1.0 sp1 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2:*:*:*:*:*:* | 1.0 sp2 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_1:*:*:*:*:*:* | 1.0 sp2_update_1 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_2:*:*:*:*:*:* | 1.0 sp2_update_2 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_3:*:*:*:*:*:* | 1.0 sp2_update_3 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_4:*:*:*:*:*:* | 1.0 sp2_update_4 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_5:*:*:*:*:*:* | 1.0 sp2_update_5 | Vulnerable | Siemens |
- cpe:2.3:a:siemens:sinec_ins:*:-:*:*:*:*:*:* Versions up to 1.0 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:* Versions 1.0 sp1 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2:*:*:*:*:*:* Versions 1.0 sp2 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_1:*:*:*:*:*:* Versions 1.0 sp2_update_1 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_2:*:*:*:*:*:* Versions 1.0 sp2_update_2 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_3:*:*:*:*:*:* Versions 1.0 sp2_update_3 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_4:*:*:*:*:*:* Versions 1.0 sp2_update_4 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_5:*:*:*:*:*:* Versions 1.0 sp2_update_5 Vulnerable ·Siemens
Remediation
- Fix · CNA SINEC INS (Siemens) Fixed in V1.0 SP2 Update 6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Siemens SINEC INS V1.0 SP2 Update 6
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-34369 A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6).Priority LOW 39
- TI-2026-34370 A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6).Priority LOW 24
- TI-2026-34368 A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 6).Priority LOW 24
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46746
- 2026-10-03 Alias added: GHSA-vxxj-9x7w-4356
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More Siemens Sinec Ins vulnerabilities
- TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2022-15935 The llhttp parser in the http module in Node v18.7.0 does not correctly handle header… CVSS 3.1MEDIUM 6.5
- TI-2022-22181 Path traversal in Siemens SINEC INS CVSS 3.1CRITICAL 9.9
- TI-2022-13925 The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does… CVSS 3.1MEDIUM 6.5
- TI-2024-02335 Unbounded memory growth with session handling in TLSv1.3 CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-46746 · CVE Program
- CVE-2026-46746 · NVD
- FIRST EPSS
- GHSA-vxxj-9x7w-4356 · GitHub Advisory Database · CC BY 4.0
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