{"id":"CVE-2026-84235","aliases":["EUVD-2026-69127","GHSA-vgg9-hj2v-mg26"],"status":"published","title":"Rockwell Automation 1756-ENBT Denial of Service Vulnerability","description":"A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.","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":0.00428,"percentile":0.37471,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2026-09-01T13:07:28Z","modified":"2026-09-01T20:50:01Z","products":[{"vendor":"rockwell automation","product":"1756-enbt module"}],"references":[{"url":"https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1798.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84235"},{"url":"https://github.com/advisories/GHSA-vgg9-hj2v-mg26"}],"sources":{"cve":[{"id":"CVE-2026-84235","title":"Rockwell Automation 1756-ENBT Denial of Service Vulnerability","description":"A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.","status":"published","published":"2026-09-01T13:07:28.779Z","modified":"2026-09-01T15:41:57.774Z","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"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:20:08.391556Z"}],"euvd":[{"id":"EUVD-2026-69127","description":"A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.","status":"published","published":"2026-09-01T13:07:28Z","modified":"2026-09-01T15:41:57Z","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":"2026-11-02T18:01:17.79788Z"}],"ghsa":[{"id":"GHSA-vgg9-hj2v-mg26","title":"A denial-of-service security issue exists in the affected product. The security issue stems from...","description":"A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.","status":"published","published":"2026-09-01T15:31:11Z","modified":"2026-09-01T18:30:40Z","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"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:11:13.913584Z"}],"nvd":[{"id":"CVE-2026-84235","description":"A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.","status":"published","published":"2026-09-01T13:20:09.563Z","modified":"2026-09-01T20:50:01.96Z","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"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:12:43.04945Z"}]}}