{"id":"CVE-2026-22925","aliases":["EUVD-2026-29424","GHSA-45ff-x9p5-mq3g"],"status":"published","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected...","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets\r\nThis could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00324,"percentile":0.25758,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-05-12T08:20:56Z","modified":"2026-10-24T13:10:00Z","products":[{"vendor":"siemens","product":"simatic cn 4100"},{"vendor":"siemens","product":"simatic_cn_4100_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html","tags":["Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22925"},{"url":"https://github.com/advisories/GHSA-45ff-x9p5-mq3g"}],"sources":{"cve":[{"id":"CVE-2026-22925","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets\r\nThis could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.","status":"published","published":"2026-05-12T08:20:56.636Z","modified":"2026-05-12T13:27:38.628Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"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":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T13:39:05.585774Z"}],"euvd":[{"id":"EUVD-2026-29424","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets\r\nThis could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.","status":"published","published":"2026-05-12T08:20:56Z","modified":"2026-05-12T13:27:38Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:04:37.152927Z"}],"ghsa":[{"id":"GHSA-45ff-x9p5-mq3g","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected...","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets\nThis could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.","status":"published","published":"2026-05-12T12:32:14Z","modified":"2026-05-12T12:32:21Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"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-770"],"updated_at":"2026-11-02T15:08:01.880471Z"}],"nvd":[{"id":"CVE-2026-22925","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets\r\nThis could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.","status":"published","published":"2026-05-12T10:16:44.057Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","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"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:18.613259Z"}]}}