{"cve":"CVE-2022-25622","nvd":{"published":"2022-04-12T09:15:14.483","modified":"2026-06-17T04:33:47.293","status":"Modified","description":"The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than defined.\n\nThis could allow an attacker to create a denial of service condition for TCP services on affected devices by sending specially crafted TCP segments.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://cert-portal.siemens.com/productcert/html/ssa-446448.html","https://cert-portal.siemens.com/productcert/pdf/ssa-446448.pdf","https://cert-portal.siemens.com/productcert/html/ssa-446448.html","https://cert-portal.siemens.com/productcert/pdf/ssa-446448.pdf"],"products":["siemens:simatic_cfu_diq_firmware","siemens:simatic_cfu_pa_firmware","siemens:simatic_s7-1500_cpu_firmware","siemens:simatic_s7-300_cpu_firmware","siemens:simatic_s7-400_pn\\/dp_v7_firmware","siemens:simatic_s7-400h_v6_firmware","siemens:simatic_s7-410_v10_firmware","siemens:simatic_s7-410_v8_firmware","siemens:simatic_tdc_cp51m1_firmware","siemens:simatic_tdc_cpu555_firmware","siemens:simatic_winac_rtx_firmware","siemens:simit_simulation_platform"],"source":"nvd","synced_at":"2026-10-19T21:30:03.577988018+00:00"},"epss":{"cve":"CVE-2022-25622","score":0.00901,"percentile":0.59703,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}