Improper access control in Siemens SIMATIC CP 1604
Priority LOW 31CWE-284Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
A vulnerability has been identified in SIMATIC CP 1604 (All versions), SIMATIC CP 1616 (All versions), SIMATIC CP 1623 (All versions), SIMATIC CP 1626 (All versions), SIMATIC CP 1628 (All versions). The kernel memory of affected devices is exposed to user-mode via direct memory access (DMA) which could allow a local attacker with administrative privileges to execute arbitrary code on the host system without any restrictions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00194 9th 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 | SIMATIC CP 1604 | All versions | — | No fix listed | CNA |
| Siemens | SIMATIC CP 1616 | All versions | — | No fix listed | CNA |
| Siemens | SIMATIC CP 1623 | All versions | — | No fix listed | CNA |
| Siemens | SIMATIC CP 1626 | All versions | — | No fix listed | CNA |
| Siemens | SIMATIC CP 1628 | All versions | — | No fix listed | CNA |
- SIMATIC CP 1604 VendorSiemens Affected All versions Fixed in — No fix listed CNA
- SIMATIC CP 1616 VendorSiemens Affected All versions Fixed in — No fix listed CNA
- SIMATIC CP 1623 VendorSiemens Affected All versions Fixed in — No fix listed CNA
- SIMATIC CP 1626 VendorSiemens Affected All versions Fixed in — No fix listed CNA
- SIMATIC CP 1628 VendorSiemens Affected All versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:simatic_cp_1604_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_cp_1604:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:simatic_cp_1616_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_cp_1616:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:simatic_cp_1623_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_cp_1623:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:simatic_cp_1626_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_cp_1626:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:simatic_cp_1628_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_cp_1628:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:simatic_cp_1604_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_cp_1604:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:simatic_cp_1616_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_cp_1616:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:simatic_cp_1623_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_cp_1623:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:simatic_cp_1626_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_cp_1626:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:simatic_cp_1628_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_cp_1628:-:*:*:*:*:*:*:* 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-2023-37194
- 2026-10-03 Alias added: GHSA-cjgq-qwc4-hf8h
References
More Siemens Simatic Cp 1604 Firmware vulnerabilities
- TI-2019-10399 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 3.1HIGH 7.5
- TI-2017-01922 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 7.1
- TI-2017-01923 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 7.1
- TI-2023-18828 Uncontrolled resource consumption in Siemens SIMATIC CP 1604 CVSS 3.1MEDIUM 4.4
Sources
- CVE-2023-37194 · CVE Program
- CVE-2023-37194 · NVD
- FIRST EPSS
- GHSA-cjgq-qwc4-hf8h · 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