Uncontrolled resource consumption in Siemens SIMATIC CP 1604
Priority LOW 20CWE-400Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.
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). Affected devices insufficiently control continuous mapping of direct memory access (DMA) requests. This could allow local attackers with administrative privileges to cause a denial of service situation on the host. A physical power cycle is required to get the system working again.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00174 6th 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
- Partial
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-2023-37195
- 2026-10-03 Alias added: GHSA-f6m2-pj42-r7g3
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-2023-18827 Improper access control in Siemens SIMATIC CP 1604 CVSS 3.1MEDIUM 6.7
Sources
- CVE-2023-37195 · CVE Program
- CVE-2023-37195 · NVD
- FIRST EPSS
- GHSA-f6m2-pj42-r7g3 · 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