{"id":"CVE-2026-12661","aliases":["EUVD-2026-69145","GHSA-h4cr-jvp7-9897"],"status":"published","title":"FactoryTalk® Historian Machine Edition - Out-of-Bounds Write Vulnerability","description":"A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0023,"percentile":0.1391,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-09-01T13:41:53Z","modified":"2026-09-02T12:52:36Z","products":[{"vendor":"rockwell automation","product":"factorytalk® historian machine edition"}],"references":[{"url":"https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1796.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12661"},{"url":"https://github.com/advisories/GHSA-h4cr-jvp7-9897"}],"sources":{"cve":[{"id":"CVE-2026-12661","title":"FactoryTalk® Historian Machine Edition - Out-of-Bounds Write Vulnerability","description":"A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive.","status":"published","published":"2026-09-01T13:41:53.24Z","modified":"2026-09-02T12:52:36.085Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-69145","description":"A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive.","status":"published","published":"2026-09-01T13:41:53Z","modified":"2026-09-02T12:52:36Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:01:16.020579Z"}],"ghsa":[{"id":"GHSA-h4cr-jvp7-9897","title":"A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A...","description":"A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive.","status":"published","published":"2026-09-01T15:31:11Z","modified":"2026-09-01T15:31:17Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/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"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:11:13.213599Z"}],"nvd":[{"id":"CVE-2026-12661","description":"A denial-of-service security issue exists within FactoryTalk® Historian Machine Edition.  A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive.","status":"published","published":"2026-09-01T14:17:24.133Z","modified":"2026-09-01T20:50:01.96Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/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"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:43.04945Z"}]}}