How severe is CVE-2023-37194?

CVE-2023-37194 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-37194 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37194?

CVE-2023-37194 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-2023-37194?

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

When was CVE-2023-37194 published?

CVE-2023-37194 was published on 2023-10-10 and last updated on 2026-06-17.

CVE-2023-37194

CVE-2023-37194 is a medium-severity vulnerability in Siemens Simatic Cp 1604 Firmware with a CVSS 3.x base score of 6.7. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
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). 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.

Frequently asked questions

What is CVE-2023-37194?: 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.
How severe is CVE-2023-37194?: CVE-2023-37194 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-37194 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37194?: CVE-2023-37194 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-2023-37194?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-37194 published?: CVE-2023-37194 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:-:*:*:*:*:*:*:*

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