Use of uninitialized resource in Siemens CP-8031 MASTER MODULE
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.20), CP-8050 MASTER MODULE (All versions < CPCI85 V05.20). The network configuration service of affected devices contains a flaw in the conversion of ipv4 addresses that could lead to an uninitialized variable being used in succeeding validation steps. By uploading specially crafted network configuration, an authenticated remote attacker could be able to inject commands that are executed on the device with root privileges during device startup.
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 | CP-8031 MASTER MODULE | All versions < CPCI85 V05.20 | — | No fix listed | CNA |
| Siemens | CP-8050 MASTER MODULE | All versions < CPCI85 V05.20 | — | No fix listed | CNA |
- CP-8031 MASTER MODULE VendorSiemens Affected All versions < CPCI85 V05.20 Fixed in — No fix listed CNA
- CP-8050 MASTER MODULE VendorSiemens Affected All versions < CPCI85 V05.20 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:sicam_a8000_cp-8050_firmware:*:*:*:*:*:*:*:* | before 05.20 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_a8000_cp-8050:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sicam_a8000_cp-8031_firmware:*:*:*:*:*:*:*:* | before 05.20 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_a8000_cp-8031:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:sicam_a8000_cp-8050_firmware:*:*:*:*:*:*:*:* Versions before 05.20 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_a8000_cp-8050:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sicam_a8000_cp-8031_firmware:*:*:*:*:*:*:*:* Versions before 05.20 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_a8000_cp-8031:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-42797
- 2026-10-03 Alias added: GHSA-j695-jhjg-w8vx
References
More Siemens Sicam A8000 Cp-8031 Firmware vulnerabilities
- TI-2022-10495 Missing authorization in Siemens SICAM A8000 CP-8031 CVSS 3.1HIGH 7.5
Sources
- CVE-2023-42797 · CVE Program
- CVE-2023-42797 · NVD
- FIRST EPSS
- GHSA-j695-jhjg-w8vx · GitHub Advisory Database · CC BY 4.0
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