{"id":"CVE-2023-32256","title":"A flaw was found in the Linux kernel's ksmbd component","summary":"A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H","cwe":["CWE-421"],"published":"2025-08-01","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-32256","references":[{"url":"https://access.redhat.com/security/cve/CVE-2023-32256","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2385885","label":"secalert@redhat.com"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abcc506a9a71976a8b4c9bf3ee6efd13229c1e19","label":"secalert@redhat.com"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-704/","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00531,"epssPercentile":0.43811,"zeroDay":true,"ingestedAt":"2026-06-29T13:24:34.403Z","slug":"CVE-2023-32256","body":"## Overview\n\nA flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":25,"ransomware":0},"changes":[]}