How severe is CVE-2019-10923?

CVE-2019-10923 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-10923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10923?

CVE-2019-10923 primarily affects Siemens Cp1604 Firmware. In total, 60 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-10923?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-10923 published?

CVE-2019-10923 was published on 2019-10-10 and last updated on 2026-06-17.

CVE-2019-10923

CVE-2019-10923 is a high-severity vulnerability in Siemens Cp1604 Firmware with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Siemens Cp1604 Firmware
Published: 2019-10-10
Last modified: 2026-06-17

Description

An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.

Frequently asked questions

What is CVE-2019-10923?: An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.
How severe is CVE-2019-10923?: CVE-2019-10923 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-10923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10923?: CVE-2019-10923 primarily affects Siemens Cp1604 Firmware. In total, 60 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-10923?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-10923 published?: CVE-2019-10923 was published on 2019-10-10 and last updated on 2026-06-17.

References

Affected products (60)

cpe:2.3:o:siemens:cp1604_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:cp1616_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:4.1.1:-:*:*:*:*:*:*
cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:4.1.1:p4:*:*:*:*:*:*
cpe:2.3:o:siemens:ek-ertec_200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:ek-ertec_200_firmware:4.5.0:-:*:*:*:*:*:*
cpe:2.3:o:siemens:ek-ertec_200p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x-200irt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200s_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200ecopn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pn\/pn_coupler_6es7158-3ad01-0xa0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_312_ifm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_313_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_314_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_314_ifm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_315_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_dp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_316-2_dp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-300_cpu_318-2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-400_v6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-400_pn_v7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-400_dp_v7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_winac_rtx_\(f\)_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_winac_rtx_\(f\)_firmware:2010:-:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_winac_rtx_\(f\)_firmware:2010:sp1:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_winac_rtx_\(f\)_firmware:2010:sp2:*:*:*:*:*:*
cpe:2.3:o:siemens:simotion_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_dcm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_dcm_firmware:1.5:-:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_dcp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g110m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g110m_firmware:4.7:-:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g120_firmware:4.7:-:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g130_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g130_firmware:4.7:-:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_g150_firmware:*:*:*:*:*:*:*:*

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