{"id":"CVE-2023-3596","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-3596","generatedAt":"2026-10-28T01:11:13.294Z","title":"Where this vulnerability exists in the Rockwell Automation 1756-EN4* Ethernet/IP communication products, it could allow a malicious user to cause a denial of service by asserting the target system through maliciously crafted CIP messages.","description":"\nWhere this vulnerability exists in the Rockwell Automation 1756-EN4* Ethernet/IP communication products, it could allow a malicious user to cause a denial of service by asserting the target system through maliciously crafted CIP messages.\n\n","published":"2023-07-12T13:15:10.000Z","lastModified":"2026-06-17T06:14:26.000Z","status":"Modified","sourceIdentifier":"PSIRT@rockwellautomation.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-787"],"affected":["rockwellautomation/1756-en4tr firmware","rockwellautomation/1756-en4trk firmware","rockwellautomation/1756-en4trxt firmware"],"epss":{"score":0.03705,"percentile":0.89668,"date":"2026-10-26","history":[]},"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 (3.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010","tags":["Permissions Required","Vendor Advisory"],"source":"PSIRT@rockwellautomation.com"},{"url":"https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010","tags":["Permissions Required","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-3596","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."}