{"id":"CVE-2026-12655","title":"A security issue exists within 1732E ArmorBlock® I/O, where an unauthenticated attacker can change the device's webserver password without valid credentials","summary":"A security issue exists within 1732E ArmorBlock® I/O, where an unauthenticated attacker can change the device's webserver password without valid credentials. This could result in admin account takeover or unauthorized modification of dev…","severity":"high","cvss":8.8,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","cwe":["CWE-294"],"vendor":"Rockwell Automation","product":"1732E ArmorBlock® I/O","affected":["1732e_armorblock_i_o <= 3.012"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:56:15.773","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-12655","references":[{"url":"https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1801.html","label":"PSIRT@rockwellautomation.com"}],"tags":["nvd","cve.org"],"epss":0.00269,"epssPercentile":0.18948,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-15T17:32:59.205388Z"},"cvssSource":"cna","ingestedAt":"2026-10-13T15:33:40.076Z","slug":"CVE-2026-12655","body":"## Overview\n\nA security issue exists within 1732E ArmorBlock® I/O, where an unauthenticated attacker can change the device's webserver password without valid credentials. This could result in admin account takeover or unauthorized modification of device configuration.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":220901,"id":"CVE-2026-12655","ts":1792026904881,"field":"cvss","old":null,"new":"8.8"},{"seq":220900,"id":"CVE-2026-12655","ts":1792026904881,"field":"severity","old":"none","new":"high"}]}