{"id":"CVE-2026-86856","title":"A flaw was found in the DPDK nfp vDPA driver","summary":"A flaw was found in the DPDK nfp vDPA driver. Stack and heap buffers sized for a single queue pair can be overflowed when more virtqueues are configured, leading to a host crash or memory corruption.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","cwe":["CWE-787"],"vendor":"Red Hat","product":"grout","affected":["grout (all versions)","openvswitch3.5 (all versions)","openvswitch3.6 (all versions)","openvswitch2.11 (all versions)","openvswitch2.12 (all versions)","openvswitch2.13 (all versions)","openvswitch2.15 (all versions)","openvswitch2.16 (all versions)","openvswitch2.17 (all versions)","openvswitch3.1 (all versions)","grout (all versions)","openvswitch2.17 (all versions)","openvswitch3.0 (all versions)","openvswitch3.1 (all versions)","openvswitch3.2 (all versions)","openvswitch3.3 (all versions)","openvswitch3.4 (all versions)","openvswitch3.5 (all versions)","openvswitch3.6 (all versions)","dpdk (all versions)","dpdk (all versions)","dpdk (all versions)","openvswitch2.17 (all versions)","openvswitch3.0 (all versions)","openvswitch3.1 (all versions)","openvswitch (all versions)"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T15:17:38.337","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86856","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-86856","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2529897","label":"secalert@redhat.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T14:45:11.104538Z"},"ingestedAt":"2026-10-14T18:47:39.319Z","slug":"CVE-2026-86856","body":"## Overview\n\nA flaw was found in the DPDK nfp vDPA driver. Stack and heap buffers sized for a single queue pair can be overflowed when more virtqueues are configured, leading to a host crash or memory corruption.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}