{"id":"CVE-2025-4418","aliases":["EUVD-2025-18217","GHSA-mqm6-5rhf-vp27"],"status":"published","title":"AVEVA PI Connector for CygNet Improper Validation of Integrity Check Value","description":"An improper validation of integrity check value vulnerability exists in \n\nAVEVA PI Connector for CygNet Versions 1.6.14 and prior that, if exploited, \ncould allow a miscreant with elevated privileges to modify PI Connector \nfor CygNet local data files (cache and buffers) in a way that causes the\n connector service to become unresponsive.","severity":{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00105,"percentile":0.01089,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2025-06-12T19:37:46Z","modified":"2026-06-17T09:33:12Z","products":[{"vendor":"aveva","product":"pi connector for cygnet"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-25-162-09"},{"url":"https://www.aveva.com/en/support-and-success/cyber-security-updates/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4418"},{"url":"https://www.aveva.com/en/support-and-success/cyber-security-updates"},{"url":"https://github.com/advisories/GHSA-mqm6-5rhf-vp27"}],"sources":{"cve":[{"id":"CVE-2025-4418","title":"AVEVA PI Connector for CygNet Improper Validation of Integrity Check Value","description":"An improper validation of integrity check value vulnerability exists in \n\nAVEVA PI Connector for CygNet Versions 1.6.14 and prior that, if exploited, \ncould allow a miscreant with elevated privileges to modify PI Connector \nfor CygNet local data files (cache and buffers) in a way that causes the\n connector service to become unresponsive.","status":"published","published":"2025-06-12T19:37:46.74Z","modified":"2025-06-12T19:54:54.525Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:32:48.167635Z"}],"euvd":[{"id":"EUVD-2025-18217","description":"An improper validation of integrity check value vulnerability exists in \n\nAVEVA PI Connector for CygNet Versions 1.6.14 and prior that, if exploited, \ncould allow a miscreant with elevated privileges to modify PI Connector \nfor CygNet local data files (cache and buffers) in a way that causes the\n connector service to become unresponsive.","status":"published","published":"2025-06-12T19:37:46Z","modified":"2025-06-12T19:54:54Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T20:32:24.065864Z"}],"ghsa":[{"id":"GHSA-mqm6-5rhf-vp27","title":"An improper validation of integrity check value vulnerability exists in \n\nAVEVA PI Connector for...","description":"An improper validation of integrity check value vulnerability exists in \n\nAVEVA PI Connector for CygNet Versions 1.6.14 and prior that, if exploited, \ncould allow a miscreant with elevated privileges to modify PI Connector \nfor CygNet local data files (cache and buffers) in a way that causes the\n connector service to become unresponsive.","status":"published","published":"2025-06-12T21:30:31Z","modified":"2025-06-12T21:30:37Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/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":"medium"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T15:02:42.831943Z"}],"nvd":[{"id":"CVE-2025-4418","description":"An improper validation of integrity check value vulnerability exists in \n\nAVEVA PI Connector for CygNet Versions 1.6.14 and prior that, if exploited, \ncould allow a miscreant with elevated privileges to modify PI Connector \nfor CygNet local data files (cache and buffers) in a way that causes the\n connector service to become unresponsive.","status":"published","published":"2025-06-12T20:15:21.943Z","modified":"2026-06-17T09:33:12.87Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/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":"medium","assessor":"secondary"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:11:11.789448Z"}]}}