CVE-2026-86565 (GCVE-0-2026-86565)

Vulnerability from cvelistv5 – Published: 2026-10-14 16:08 – Updated: 2026-10-15 15:07
VLAI
Title
Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write
Summary
A flaw was found in DPDK lib/vhost. A guest can desynchronize virtqueue size from inflight descriptor table size, causing an out-of-bounds write in the host vhost process.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:53 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 1016 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-86565 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2529683 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-10-14 15:00
Show details on NVD website

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            "source": "secalert@redhat.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in DPDK lib/vhost. A guest can desynchronize virtqueue size from inflight descriptor table size, causing an out-of-bounds write in the host vhost process."
          }
        ],
        "id": "CVE-2026-86565",
        "lastModified": "2026-10-14T20:13:37.910",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 8.2,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.5,
              "impactScore": 6.0,
              "source": "secalert@redhat.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-14T17:20:05.770",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "https://access.redhat.com/security/cve/CVE-2026-86565"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2529683"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-15T09:39:36+00:00",
      "cve": "CVE-2026-86565",
      "id": "CVE-2026-86565",
      "initial_release_date": "2026-10-14T15:00:48.780149+00:00",
      "product_status:known_affected": "149",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "dpdk: dpdk: Guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-86565.json",
      "version": "3"
    }
  }
}



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