Improper certificate validation in Siemens SINEC INS
Priority MEDIUM 43CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- 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-295.
Summary
A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 2). Affected products do not properly validate the certificate of the configured UMC server. This could allow an attacker to intercept credentials that are sent to the UMC server as well as to manipulate responses, potentially allowing an attacker to escalate privileges.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00454 39th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 | All versions < V1.0 SP2 Update 2 | — | No fix listed | CNA |
- SINEC INS VendorSiemens Affected All versions < V1.0 SP2 Update 2 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:* | before 1.0 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:* | 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:*:*:*:*:*:*:*:* Versions before 1.0 Vulnerable ·Siemens
- cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:* Versions 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-48427
- 2026-10-03 Alias added: GHSA-ffrg-8pgr-8693
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-2023-48427 · CVE Program
- CVE-2023-48427 · NVD
- FIRST EPSS
- GHSA-ffrg-8pgr-8693 · GitHub Advisory Database · CC BY 4.0
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