{"id":"CVE-2022-27640","aliases":["EUVD-2022-32141","GHSA-26j8-6884-fcqw"],"status":"published","title":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP...","description":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP 443-1 RNA (All versions \u003c V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00369,"percentile":0.30977,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2022-05-10T09:47:02Z","modified":"2026-06-17T04:37:24Z","products":[{"vendor":"siemens","product":"simatic cp 442-1 rna"},{"vendor":"siemens","product":"simatic cp 443-1 rna"},{"vendor":"siemens","product":"simatic_cp_442-1_rna_firmware"},{"vendor":"siemens","product":"simatic_cp_443-1_rna_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-480937.pdf","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-27640"},{"url":"https://github.com/advisories/GHSA-26j8-6884-fcqw"}],"sources":{"cve":[{"id":"CVE-2022-27640","description":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP 443-1 RNA (All versions \u003c V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.","status":"published","published":"2022-05-10T09:47:02Z","modified":"2024-08-03T05:32:59.808Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:34:34.250357Z"}],"euvd":[{"id":"EUVD-2022-32141","description":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP 443-1 RNA (All versions \u003c V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.","status":"published","published":"2022-05-10T09:47:02Z","modified":"2024-08-03T05:32:59Z","updated_at":"2026-11-03T03:25:42.489853Z"}],"ghsa":[{"id":"GHSA-26j8-6884-fcqw","title":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP...","description":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP 443-1 RNA (All versions \u003c V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.","status":"published","published":"2022-05-21T00:00:56Z","modified":"2023-01-28T05:04:46Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:44:14.607752Z"}],"nvd":[{"id":"CVE-2022-27640","description":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP 443-1 RNA (All versions \u003c V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.","status":"published","published":"2022-05-20T13:15:15.077Z","modified":"2026-06-17T04:37:24.1Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:07:20.264424Z"}]}}