CVE-2026-101310 (GCVE-0-2026-101310)

Vulnerability from cvelistv5 – Published: 2026-10-15 07:18 – Updated: 2026-10-15 07:18
VLAI
Title
Multiple vulnerabilities in bhyve device models
Summary
The HDA audio device model did not check for zero-length Buffer Descriptor List (BDL) entries when starting a stream. A zero-length entry caused an out-of-bounds read or write during DMA transfer processing. BDL fields were also subject to modification by the guest after validation. A malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve's Capsicum sandbox.
Severity
No CVSS data available.
CWE
  • CWE-126 - CWE-125: Out-of-bounds Read
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-787 - Out-of-bounds Write
Assigner
freebsd CNA under the mitre root
CNA scorecard D 60/100 over 69 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeBSD FreeBSD Affected: 15.1-RELEASE , < p5 (release)
Affected: 14.5-RELEASE , < p2 (release)
Affected: 14.4-RELEASE , < p11 (release)
guessed Create a notification for this product.
Date Public
2026-10-14 18:45
Credits
Brian Delgado from Intel using Anthropic Opus 4.8 Joshua Rogers of AISLE Research Team Yuxiang Yang, Yizhou Zhao, Ao Wang, Xuewei Feng, Qi Li, and Ke Xu from Tsinghua University using GLM-5.1 from Z.ai
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "bhyve"
          ],
          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "lessThan": "p5",
              "status": "affected",
              "version": "15.1-RELEASE",
              "versionType": "release"
            },
            {
              "lessThan": "p2",
              "status": "affected",
              "version": "14.5-RELEASE",
              "versionType": "release"
            },
            {
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              "status": "affected",
              "version": "14.4-RELEASE",
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            }
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      ],
      "credits": [
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          "type": "finder",
          "value": "Brian Delgado from Intel using Anthropic Opus 4.8"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Joshua Rogers of AISLE Research Team"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Yuxiang Yang, Yizhou Zhao, Ao Wang, Xuewei Feng, Qi Li, and Ke Xu from Tsinghua University using GLM-5.1 from Z.ai"
        }
      ],
      "datePublic": "2026-10-14T18:45:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The HDA audio device model did not check for zero-length Buffer Descriptor List (BDL) entries when starting a stream.  A zero-length entry caused an out-of-bounds read or write during DMA transfer processing.  BDL fields were also subject to modification by the guest after validation.\n\nA malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve\u0027s Capsicum sandbox."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-126",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-362",
              "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-787",
              "description": "CWE-787: Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-15T07:18:11.464Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:72.bhyve.asc"
        }
      ],
      "title": "Multiple vulnerabilities in bhyve device models",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
    "assignerShortName": "freebsd",
    "cveId": "CVE-2026-101310",
    "datePublished": "2026-10-15T07:18:11.464Z",
    "dateReserved": "2026-09-28T13:33:02.324Z",
    "dateUpdated": "2026-10-15T07:18:11.464Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-101310",
      "date": "2026-10-15",
      "epss": "0.00181",
      "percentile": "0.07121"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "modules": [
                  "bhyve"
                ],
                "product": "FreeBSD",
                "vendor": "FreeBSD",
                "versions": [
                  {
                    "lessThan": "p5",
                    "status": "affected",
                    "version": "15.1-RELEASE",
                    "versionType": "release"
                  },
                  {
                    "lessThan": "p2",
                    "status": "affected",
                    "version": "14.5-RELEASE",
                    "versionType": "release"
                  },
                  {
                    "lessThan": "p11",
                    "status": "affected",
                    "version": "14.4-RELEASE",
                    "versionType": "release"
                  }
                ]
              }
            ],
            "source": "secteam@freebsd.org"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The HDA audio device model did not check for zero-length Buffer Descriptor List (BDL) entries when starting a stream.  A zero-length entry caused an out-of-bounds read or write during DMA transfer processing.  BDL fields were also subject to modification by the guest after validation.\n\nA malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve\u0027s Capsicum sandbox."
          }
        ],
        "id": "CVE-2026-101310",
        "lastModified": "2026-10-15T08:16:36.313",
        "metrics": {},
        "published": "2026-10-15T08:16:36.313",
        "references": [
          {
            "source": "secteam@freebsd.org",
            "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:72.bhyve.asc"
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        "sourceIdentifier": "secteam@freebsd.org",
        "vulnStatus": "Received",
        "weaknesses": [
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            "description": [
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                "value": "CWE-126"
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              {
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                "value": "CWE-362"
              },
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "secteam@freebsd.org",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



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