{"id":"CVE-2025-40833","title":"The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests","summary":"The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"published":"2026-05-12","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40833","references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-392349.html","label":"productcert@siemens.com"}],"tags":["nvd"],"epss":0.00324,"epssPercentile":0.25696,"ingestedAt":"2026-07-14T10:36:25.469Z","slug":"CVE-2025-40833","body":"## Overview\n\nThe affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}