CVE-2019-6568

The webserver of the affected devices contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation which leads to a restart of the webserver of the affected device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device.

Published: 2019-04-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-6568 is rated Moderate Risk (55.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.40%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-6568

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.41% 1.40% +0.99%
2 2025-06-15 0.47% 0.41% -0.06%
3 2025-03-30 — 0.47% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-6568

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-6568

Affected software / configurations for CVE-2019-6568

Vendor Product Version Raw CPE
siemens cp1604_firmware — cpe:2.3:o:siemens:cp1604_firmware:*:*:*:*:*:*:*:*
siemens cp1616_firmware — cpe:2.3:o:siemens:cp1616_firmware:*:*:*:*:*:*:*:*
siemens simatic_rf185c_firmware < 1.1.0 cpe:2.3:o:siemens:simatic_rf185c_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp343-1_advanced_firmware — cpe:2.3:o:siemens:simatic_cp343-1_advanced_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp443-1_firmware — cpe:2.3:o:siemens:simatic_cp443-1_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp443-1_advanced_firmware — cpe:2.3:o:siemens:simatic_cp443-1_advanced_firmware:*:*:*:*:*:*:*:*
siemens simatic_et_200_sp_open_controller_cpu_1515sp_pc_firmware < 2.1.6 cpe:2.3:o:siemens:simatic_et_200_sp_open_controller_cpu_1515sp_pc_firmware:*:*:*:*:*:*:*:*
siemens simatic_et_200_sp_open_controller_cpu_1515sp_pc2_firmware < 2.7 cpe:2.3:o:siemens:simatic_et_200_sp_open_controller_cpu_1515sp_pc2_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_comfort_outdoor_panels_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_comfort_outdoor_panels_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_comfort_outdoor_panels_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_comfort_outdoor_panels_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_hmi_comfort_panels_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_comfort_panels_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_comfort_panels_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_comfort_panels_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp400f_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp400f_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp400f_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp400f_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp700_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp700_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp700_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp700_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp700f_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp700f_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp700f_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp700f_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp900_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp900_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp900_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp900_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp900f_firmware < 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp900f_firmware:*:*:*:*:*:*:*:*
siemens simatic_hmi_ktp_mobile_panels_ktp900f_firmware 15.1 cpe:2.3:o:siemens:simatic_hmi_ktp_mobile_panels_ktp900f_firmware:15.1:-:*:*:*:*:*:*
siemens simatic_cp443-1_opc_ua — cpe:2.3:a:siemens:simatic_cp443-1_opc_ua:*:*:*:*:*:*:*:*
siemens simatic_ipc_diagmonitor < 5.1.3 cpe:2.3:a:siemens:simatic_ipc_diagmonitor:*:*:*:*:*:*:*:*
siemens simatic_s7-1500_software_controller < 2.7 cpe:2.3:a:siemens:simatic_s7-1500_software_controller:*:*:*:*:*:*:*:*
siemens simatic_s7-plcsim_advanced < 2.0 cpe:2.3:a:siemens:simatic_s7-plcsim_advanced:*:*:*:*:*:*:*:*
siemens simatic_s7-plcsim_advanced 2.0 cpe:2.3:a:siemens:simatic_s7-plcsim_advanced:2.0:-:*:*:*:*:*:*
siemens simatic_s7-plcsim_advanced 2.0 cpe:2.3:a:siemens:simatic_s7-plcsim_advanced:2.0:sp1:*:*:*:*:*:*
siemens simatic_wincc_runtime_advanced < 15.1 cpe:2.3:a:siemens:simatic_wincc_runtime_advanced:*:*:*:*:*:*:*:*
siemens simatic_wincc_runtime_advanced 15.1 cpe:2.3:a:siemens:simatic_wincc_runtime_advanced:15.1:-:*:*:*:*:*:*
siemens simatic_wincc_runtime_advanced 15.1 cpe:2.3:a:siemens:simatic_wincc_runtime_advanced:15.1:update1:*:*:*:*:*:*
siemens simatic_wincc_runtime_advanced 15.1 cpe:2.3:a:siemens:simatic_wincc_runtime_advanced:15.1:update2:*:*:*:*:*:*
siemens simatic_wincc_runtime_advanced 15.1 cpe:2.3:a:siemens:simatic_wincc_runtime_advanced:15.1:update3:*:*:*:*:*:*
siemens sitop_manager < 1.1 cpe:2.3:a:siemens:sitop_manager:*:*:*:*:*:*:*:*
siemens simatic_rf600r_firmware < 3.2.1 cpe:2.3:o:siemens:simatic_rf600r_firmware:*:*:*:*:*:*:*:*
siemens simatic_rf188c_firmware < 1.1.0 cpe:2.3:o:siemens:simatic_rf188c_firmware:*:*:*:*:*:*:*:*
siemens simatic_rf186c_firmware < 1.1.0 cpe:2.3:o:siemens:simatic_rf186c_firmware:*:*:*:*:*:*:*:*
siemens simatic_rf182c_firmware — cpe:2.3:o:siemens:simatic_rf182c_firmware:*:*:*:*:*:*:*:*
siemens simatic_rf181-eip_firmware — cpe:2.3:o:siemens:simatic_rf181-eip_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-1500_firmware < 2.6.1 cpe:2.3:o:siemens:simatic_s7-1500_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-300_firmware < 3.3.17 cpe:2.3:o:siemens:simatic_s7-300_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-400_pn_firmware — cpe:2.3:o:siemens:simatic_s7-400_pn_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-400_pn\/dp_firmware — cpe:2.3:o:siemens:simatic_s7-400_pn\/dp_firmware:*:*:*:*:*:*:*:*
siemens simatic_teleservice_adapter_ie_advanced_firmware — cpe:2.3:o:siemens:simatic_teleservice_adapter_ie_advanced_firmware:*:*:*:*:*:*:*:*
siemens simatic_teleservice_adapter_ie_basic_firmware — cpe:2.3:o:siemens:simatic_teleservice_adapter_ie_basic_firmware:*:*:*:*:*:*:*:*
siemens simatic_teleservice_adapter_ie_standard_firmware — cpe:2.3:o:siemens:simatic_teleservice_adapter_ie_standard_firmware:*:*:*:*:*:*:*:*
siemens simatic_winac_rtx_firmware < 2010 cpe:2.3:o:siemens:simatic_winac_rtx_firmware:*:*:*:*:*:*:*:*
siemens simatic_winac_rtx_firmware 2010 cpe:2.3:o:siemens:simatic_winac_rtx_firmware:2010:-:*:*:*:*:*:*
siemens simocode_pro_v_eip_firmware < 1.1.3 cpe:2.3:o:siemens:simocode_pro_v_eip_firmware:*:*:*:*:*:*:*:*
siemens simocode_pro_v_pn_firmware < 2.1.3 cpe:2.3:o:siemens:simocode_pro_v_pn_firmware:*:*:*:*:*:*:*:*
siemens sinamics_g130_firmware < 5.2 cpe:2.3:o:siemens:sinamics_g130_firmware:*:*:*:*:*:*:*:*
siemens sinamics_g150_firmware < 5.2 cpe:2.3:o:siemens:sinamics_g150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_s120_firmware < 5.2 cpe:2.3:o:siemens:sinamics_s120_firmware:*:*:*:*:*:*:*:*
siemens sinamics_s150_firmware < 5.1 cpe:2.3:o:siemens:sinamics_s150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_s150_firmware 5.1 cpe:2.3:o:siemens:sinamics_s150_firmware:5.1:-:*:*:*:*:*:*
siemens sinamics_s150_firmware 5.1 cpe:2.3:o:siemens:sinamics_s150_firmware:5.1:sp1:*:*:*:*:*:*
siemens sinamics_s150_firmware 5.1 cpe:2.3:o:siemens:sinamics_s150_firmware:5.1:sp1_hotfix2:*:*:*:*:*:*
siemens sinamics_s210_firmware < 5.1 cpe:2.3:o:siemens:sinamics_s210_firmware:*:*:*:*:*:*:*:*
siemens sinamics_s210_firmware 5.1 cpe:2.3:o:siemens:sinamics_s210_firmware:5.1:-:*:*:*:*:*:*
siemens sinamics_s210_firmware 5.1 cpe:2.3:o:siemens:sinamics_s210_firmware:5.1:sp1:*:*:*:*:*:*
siemens sitop_psu8600_firmware < 1.5 cpe:2.3:o:siemens:sitop_psu8600_firmware:*:*:*:*:*:*:*:*
siemens sitop_ups1600_firmware < 2.3 cpe:2.3:o:siemens:sitop_ups1600_firmware:*:*:*:*:*:*:*:*
siemens tim_1531_irc_firmware < 2.1 cpe:2.3:o:siemens:tim_1531_irc_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-1500f_firmware < 2.6.1 cpe:2.3:o:siemens:simatic_s7-1500f_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-1500s_firmware < 2.6.1 cpe:2.3:o:siemens:simatic_s7-1500s_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-1500t_firmware < 2.6.1 cpe:2.3:o:siemens:simatic_s7-1500t_firmware:*:*:*:*:*:*:*:*
siemens sinamics_gh150_firmware < 4.8 cpe:2.3:o:siemens:sinamics_gh150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_gh150_firmware 4.8 cpe:2.3:o:siemens:sinamics_gh150_firmware:4.8:-:*:*:*:*:*:*
siemens sinamics_gl150_firmware < 4.8 cpe:2.3:o:siemens:sinamics_gl150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_gl150_firmware 4.8 cpe:2.3:o:siemens:sinamics_gl150_firmware:4.8:-:*:*:*:*:*:*
siemens sinamics_gm150_firmware < 4.8 cpe:2.3:o:siemens:sinamics_gm150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_gm150_firmware 4.8 cpe:2.3:o:siemens:sinamics_gm150_firmware:4.8:-:*:*:*:*:*:*
siemens sinamics_sl150_firmware < 4.8 cpe:2.3:o:siemens:sinamics_sl150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_sl150_firmware 4.8 cpe:2.3:o:siemens:sinamics_sl150_firmware:4.8:-:*:*:*:*:*:*
siemens sinamics_sm120_firmware < 4.8 cpe:2.3:o:siemens:sinamics_sm120_firmware:*:*:*:*:*:*:*:*
siemens sinamics_sm120_firmware 4.8 cpe:2.3:o:siemens:sinamics_sm120_firmware:4.8:-:*:*:*:*:*:*
siemens sinamics_sm150_firmware < 5.1 cpe:2.3:o:siemens:sinamics_sm150_firmware:*:*:*:*:*:*:*:*
siemens sinamics_sm150_firmware 5.1 cpe:2.3:o:siemens:sinamics_sm150_firmware:5.1:-:*:*:*:*:*:*

References for CVE-2019-6568

cvelogic Threat Intelligence