{"id":"CVE-2023-3338","title":"A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol","summary":"A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476","CWE-476"],"vendor":"netapp","product":"active_iq_unified_manager","affected":["linux_kernel < 6.5","active_iq_unified_manager","debian_linux = 10.0","debian_linux = 11.0"],"patched":["linux_kernel 6.5"],"published":"2023-06-30","updated":"2026-10-14","sourceUpdated":"2026-10-14T21:17:16.457","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-3338","references":[{"url":"https://access.redhat.com/security/cve/CVE-2023-3338","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2218618","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html","label":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"secalert@redhat.com"},{"url":"https://seclists.org/oss-sec/2023/q2/276","label":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20230824-0005/","label":"secalert@redhat.com"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2023-3338","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2218618","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/oss-sec/2023/q2/276","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20230824-0005/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","exploit-available"],"epss":0.08289,"epssPercentile":0.94844,"exploits":{"github":1,"githubRepos":["https://github.com/TurtleARM/CVE-2023-3338-DECPwn"],"checkedAt":"2026-10-14T21:57:39.234Z"},"exploitAvailable":true,"ingestedAt":"2026-10-14T21:57:04.736Z","slug":"CVE-2023-3338","body":"## Overview\n\nA null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.\n\n## Affected\n\n- `linux_kernel < 6.5`\n- `active_iq_unified_manager`\n- `debian_linux = 10.0`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.5`","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":35.8,"likelihood":1.7,"exploitation":12,"ransomware":0},"changes":[]}