{"id":"CVE-2019-10923","aliases":["EUVD-2019-2637","GHSA-gm9h-7xvc-jg2f"],"status":"published","title":"A vulnerability has been identified in CP1604 (All versions \u003c V2.8), CP1616 (All versions \u003c V2.8)...","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01401,"percentile":0.72704,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2019-10-10T13:49:24Z","modified":"2026-06-17T02:11:54Z","products":[{"vendor":"siemens","product":"cp1604_firmware"},{"vendor":"siemens","product":"cp1616_firmware"},{"vendor":"siemens","product":"development/evaluation kits 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2010"},{"vendor":"siemens","product":"simatic_et_200ecopn_firmware"},{"vendor":"siemens","product":"simatic_et_200m_firmware"},{"vendor":"siemens","product":"simatic_et_200s_firmware"},{"vendor":"siemens","product":"simatic_pn\\/pn_coupler_6es7158-3ad01-0xa0_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_312_ifm_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_313_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_314_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_314_ifm_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_315-2_dp_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_315_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_316-2_dp_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_318-2_firmware"},{"vendor":"siemens","product":"simatic_s7-300_cpu_firmware"},{"vendor":"siemens","product":"simatic_s7-400_dp_v7_firmware"},{"vendor":"siemens","product":"simatic_s7-400_pn_v7_firmware"},{"vendor":"siemens","product":"simatic_s7-400_v6_firmware"},{"vendor":"siemens","product":"simatic_winac_rtx_\\(f\\)_firmware"},{"vendor":"siemens","product":"simotion"},{"vendor":"siemens","product":"simotion_firmware"},{"vendor":"siemens","product":"sinamics 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unit"},{"vendor":"siemens","product":"sinamics_dcm_firmware"},{"vendor":"siemens","product":"sinamics_dcp_firmware"},{"vendor":"siemens","product":"sinamics_g110m_firmware"},{"vendor":"siemens","product":"sinamics_g120_firmware"},{"vendor":"siemens","product":"sinamics_g130_firmware"},{"vendor":"siemens","product":"sinamics_g150_firmware"},{"vendor":"siemens","product":"sinamics_gh150_firmware"},{"vendor":"siemens","product":"sinamics_gl150_firmware"},{"vendor":"siemens","product":"sinamics_gm150_firmware"},{"vendor":"siemens","product":"sinamics_s110_firmware"},{"vendor":"siemens","product":"sinamics_s120_firmware"},{"vendor":"siemens","product":"sinamics_s150_firmware"},{"vendor":"siemens","product":"sinamics_sl150_firmware"},{"vendor":"siemens","product":"sinamics_sm120_firmware"},{"vendor":"siemens","product":"sinumerik 828d"},{"vendor":"siemens","product":"sinumerik 840d 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pn/dp"},{"vendor":"siemens","product":"siplus s7-300 cpu 315-2 pn/dp"},{"vendor":"siemens","product":"siplus s7-300 cpu 315f-2 pn/dp"},{"vendor":"siemens","product":"siplus s7-300 cpu 317-2 pn/dp"},{"vendor":"siemens","product":"siplus s7-300 cpu 317f-2 pn/dp"},{"vendor":"siemens","product":"siplus s7-400 cpu 414-3 pn/dp v7"},{"vendor":"siemens","product":"siplus s7-400 cpu 416-3 pn/dp v7"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-349422.pdf","tags":["x_transferred","Vendor Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-349422.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-10923"},{"url":"https://github.com/advisories/GHSA-gm9h-7xvc-jg2f"}],"sources":{"cve":[{"id":"CVE-2019-10923","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.","status":"published","published":"2019-10-10T13:49:24Z","modified":"2025-02-11T10:26:23.281Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:20:19.056416Z"}],"euvd":[{"id":"EUVD-2019-2637","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.","status":"published","published":"2019-10-10T13:49:24Z","modified":"2025-02-11T10:26:23Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T00:03:59.807436Z"}],"ghsa":[{"id":"GHSA-gm9h-7xvc-jg2f","title":"A vulnerability has been identified in CP1604 (All versions \u003c V2.8), CP1616 (All versions \u003c V2.8)...","description":"A vulnerability has been identified in CP1604 (All versions \u003c V2.8), CP1616 (All versions \u003c V2.8), Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller (All versions \u003c V4.1.1 Patch 05), Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 (All versions \u003c V4.5.0 Patch 01), Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P (All versions \u003c V4.5.0), SCALANCE X-200IRT (All versions \u003c V5.2.1), SIMATIC ET 200M (All versions), SIMATIC ET 200S (All versions), SIMATIC ET 200ecoPN (except 6ES7148-6JD00-0AB0 and 6ES7146-6FF00-0AB0) (All versions), SIMATIC ET 200pro (All versions), SIMATIC PN/PN Coupler 6ES7158-3AD01-0XA0 (All versions), SIMATIC S7-300 CPU family (incl. F) (All versions), SIMATIC S7-400 (incl. F) V6 and below (All versions), SIMATIC S7-400 PN/DP V7 (incl. F) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions \u003c SIMATIC WinAC RTX 2010 SP3), SIMOTION (All versions), SINAMICS DCM (All versions \u003c V1.5 HF1), SINAMICS DCP (All versions), SINAMICS G110M V4.7 (Control Unit) (All versions \u003c V4.7 SP10 HF5), SINAMICS G120 V4.7 (Control Unit) (All versions \u003c V4.7 SP10 HF5), SINAMICS G130 V4.7 (Control Unit) (All versions \u003c V4.7 HF29), SINAMICS G150 (Control Unit) (All versions \u003c V4.8), SINAMICS GH150 V4.7 (Control Unit) (All versions), SINAMICS GL150 V4.7 (Control Unit) (All versions), SINAMICS GM150 V4.7 (Control Unit) (All versions), SINAMICS S110 (Control Unit) (All versions), SINAMICS S120 V4.7 (Control Unit and CBE20) (All versions \u003c V4.7 HF34), SINAMICS S150 (Control Unit) (All versions \u003c V4.8), SINAMICS SL150 V4.7 (Control Unit) (All versions), SINAMICS SM120 V4.7 (Control Unit) (All versions), SINUMERIK 828D (All versions \u003c V4.8 SP5), SINUMERIK 840D sl (All versions). 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. The security vulnerability could be exploited by an unauthenticated attacker with network access to the affected installation. No user interaction is required to exploit this security vulnerability. The vulnerability impacts the availability of the affected installations.","status":"published","published":"2022-05-24T16:58:25Z","modified":"2024-09-10T12:31:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:58:13.090684Z"}],"nvd":[{"id":"CVE-2019-10923","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.","status":"published","published":"2019-10-10T14:15:14.503Z","modified":"2026-06-17T02:11:54.867Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:05:31.019577Z"}]}}