How severe is CVE-2023-37195?

CVE-2023-37195 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-37195 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37195?

CVE-2023-37195 primarily affects Siemens Simatic Cp 1604 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-37195?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-37195 published?

CVE-2023-37195 was published on 2023-10-10 and last updated on 2026-06-17.

CVE-2023-37195

CVE-2023-37195 is a medium-severity vulnerability in Siemens Simatic Cp 1604 Firmware with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Siemens Simatic Cp 1604 Firmware
Published: 2023-10-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-37195?: 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.
How severe is CVE-2023-37195?: CVE-2023-37195 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-37195 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37195?: CVE-2023-37195 primarily affects Siemens Simatic Cp 1604 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-37195?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-37195 published?: CVE-2023-37195 was published on 2023-10-10 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-784849.pdf

Affected products (5)

cpe:2.3:o:siemens:simatic_cp_1604_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1616_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1623_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1626_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_1628_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Siemens Simatic Cp 1604 Firmware

CVE-2019-13946 — High (CVSS 7.5): Profinet-IO (PNIO) stack versions prior V06.00 do not properly limit internal resource allocation when multiple…
CVE-2023-37194 — Medium (CVSS 6.7): A vulnerability has been identified in SIMATIC CP 1604 (All versions), SIMATIC CP 1616 (All versions), SIMATIC CP 1623…
CVE-2017-2681 — Medium (CVSS 6.5): Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a…
CVE-2017-2680 — Medium (CVSS 6.5): Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a…

All CVEs affecting Siemens Simatic Cp 1604 Firmware →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →