{"id":"CVE-2025-40941","aliases":["EUVD-2025-201915","GHSA-4cw5-4fh5-2c5q"],"status":"published","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected...","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected devices exposes server information in its responses.\r\nThis could allow an attacker with network access to gain useful information, increasing the likelihood of targeted attacks.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00302,"percentile":0.23102,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2025-12-09T10:44:40Z","modified":"2026-10-23T22:10:00Z","products":[{"vendor":"siemens","product":"simatic cn 4100"},{"vendor":"siemens","product":"simatic_cn_4100_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-416652.html","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40941"},{"url":"https://github.com/advisories/GHSA-4cw5-4fh5-2c5q"}],"sources":{"cve":[{"id":"CVE-2025-40941","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected devices exposes server information in its responses.\r\nThis could allow an attacker with network access to gain useful information, increasing the likelihood of targeted attacks.","status":"published","published":"2025-12-09T10:44:40.075Z","modified":"2025-12-09T15:13:03.138Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:32:34.434755Z"}],"euvd":[{"id":"EUVD-2025-201915","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected devices exposes server information in its responses.\r\nThis could allow an attacker with network access to gain useful information, increasing the likelihood of targeted attacks.","status":"published","published":"2025-12-09T10:44:40Z","modified":"2025-12-09T15:13:03Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:49:08.049254Z"}],"ghsa":[{"id":"GHSA-4cw5-4fh5-2c5q","title":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected...","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected devices exposes server information in its responses.\nThis could allow an attacker with network access to gain useful information, increasing the likelihood of targeted attacks.","status":"published","published":"2025-12-09T18:30:36Z","modified":"2025-12-09T18:30:42Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:05:06.487163Z"}],"nvd":[{"id":"CVE-2025-40941","description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V4.0.1). The affected devices exposes server information in its responses.\r\nThis could allow an attacker with network access to gain useful information, increasing the likelihood of targeted attacks.","status":"published","published":"2025-12-09T16:17:47.997Z","modified":"2026-10-23T22:10:00.16Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:11:49.093461Z"}]}}