{"id":"CVE-2026-12656","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-12656","generatedAt":"2026-10-28T01:41:08.904Z","title":"A denial-of-service security issue exists in the affected product and version.","description":"A denial-of-service security issue exists in the affected product and version. The security issue stems from improper handling of network storm traffic, which can interrupt communication, cause device faults, and affect open TCP and UDP ports. A power cycle is required to recover the device to its normal state.","published":"2026-10-13T15:17:44.000Z","lastModified":"2026-10-16T19:56:16.000Z","status":"Deferred","sourceIdentifier":"PSIRT@rockwellautomation.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","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/M"},"cwe":["CWE-770"],"affected":[],"epss":{"score":0.00253,"percentile":0.16608,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.00253,"percentile":0.15594}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T15:17:44.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-13T15:17:43.967Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1801.html","source":"PSIRT@rockwellautomation.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-12656","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}