Vulnerability-Lookup

CVE-2026-47104 (GCVE-0-2026-47104)

Vulnerability from cvelistv5 – Published: 2026-05-27 13:20 – Updated: 2026-05-27 15:32 X_Open Source

Title

libusb < 1.0.30 Out-of-Bounds Read in parse_iad_array()

Summary

libusb before version 1.0.30 contains a one-byte out-of-bounds read vulnerability in parse_iad_array() in descriptor.c that allows attackers to trigger a denial of service by supplying a malformed USB descriptor whose bLength equals size minus one, causing the bounds check to use the original buffer size instead of the remaining size. Attackers in virtualized environments with USB passthrough can supply crafted descriptors through libusb_get_active_interface_association_descriptors or libusb_get_interface_association_descriptors to read one byte past the end of the malloc allocation, resulting in a denial of service.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck

References

5 references

URL	Tags
https://github.com/libusb/libusb/releases/tag/v1.0.30	release-notes
https://github.com/libusb/libusb/issues/1813	technical-description
https://github.com/libusb/libusb/pull/1814	issue-tracking
https://github.com/libusb/libusb/commit/578ab76b4…	patch
https://www.vulncheck.com/advisories/libusb-out-o…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
libusb	libusb	Affected: 0 , < 1.0.30 (semver)

Date Public

2026-04-25 00:00

Credits

@MarkLee131

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-47104

Vulnerability from fkie_nvd - Published: 2026-05-27 14:17 - Updated: 2026-05-28 15:40

Severity

4.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
disclosure@vulncheck.com	https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704	Patch
disclosure@vulncheck.com	https://github.com/libusb/libusb/issues/1813	Issue Tracking, Mitigation
disclosure@vulncheck.com	https://github.com/libusb/libusb/pull/1814	Issue Tracking, Patch
disclosure@vulncheck.com	https://github.com/libusb/libusb/releases/tag/v1.0.30	Product, Release Notes
disclosure@vulncheck.com	https://www.vulncheck.com/advisories/libusb-out-of-bounds-read-in-parse-iad-array	Patch, Third Party Advisory

Impacted products

	Vendor	Product	Version
	libusb	libusb	*

JSON

To clipboard

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    ]
  },
  "published": "2026-05-27T14:17:32.590",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Issue Tracking",
        "Mitigation"
      ],
      "url": "https://github.com/libusb/libusb/issues/1813"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/libusb/libusb/pull/1814"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/libusb/libusb/releases/tag/v1.0.30"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/libusb-out-of-bounds-read-in-parse-iad-array"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Primary"
    }
  ]
}

GHSA-FH6G-R8PF-WQGW

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

Severity

4.0 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.1 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-47104"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:32Z",
    "severity": "MODERATE"
  },
  "details": "libusb before version 1.0.30 contains a one-byte out-of-bounds read vulnerability in parse_iad_array() in descriptor.c that allows attackers to trigger a denial of service by supplying a malformed USB descriptor whose bLength equals size minus one, causing the bounds check to use the original buffer size instead of the remaining size. Attackers in virtualized environments with USB passthrough can supply crafted descriptors through libusb_get_active_interface_association_descriptors or libusb_get_interface_association_descriptors to read one byte past the end of the malloc allocation, resulting in a denial of service.",
  "id": "GHSA-fh6g-r8pf-wqgw",
  "modified": "2026-05-27T15:33:24Z",
  "published": "2026-05-27T15:33:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47104"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libusb/libusb/issues/1813"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libusb/libusb/pull/1814"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libusb/libusb/releases/tag/v1.0.30"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/libusb-out-of-bounds-read-in-parse-iad-array"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

MSRC_CVE-2026-47104

Vulnerability from csaf_microsoft - Published: 2026-05-02 00:00 - Updated: 2026-06-02 01:44

Summary

libusb < 1.0.30 Out-of-Bounds Read in parse_iad_array()

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

CVE-2026-47104

CWE-125 - Out-of-bounds Read

Affected products

Known not affected 2 products

Product	Identifier	Version	Remediation
Unresolved product id: 17084-2		—
Unresolved product id: 17084-1		—

References

4 references

URL	Category
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self
https://support.microsoft.com/lifecycle	external
https://www.first.org/cvss	external
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self

JSON

To clipboard

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-47104 libusb \u003c 1.0.30 Out-of-Bounds Read in parse_iad_array() - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-47104.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "libusb \u003c 1.0.30 Out-of-Bounds Read in parse_iad_array()",
    "tracking": {
      "current_release_date": "2026-06-02T01:44:53.000Z",
      "generator": {
        "date": "2026-06-02T07:14:05.879Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-47104",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-28T01:07:24.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-06-02T01:44:53.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "category": "product_name",
            "name": "azl3 libgusb 0:0.3.5-3.azl3",
            "product": {
              "name": "azl3 libgusb 0:0.3.5-3.azl3",
              "product_id": "2"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 libusb 0:1.0.26-1.azl3",
            "product": {
              "name": "azl3 libusb 0:1.0.26-1.azl3",
              "product_id": "1"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 libgusb 0:0.3.5-3.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 libusb 0:1.0.26-1.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-47104",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "flags": [
        {
          "label": "component_not_present",
          "product_ids": [
            "17084-2",
            "17084-1"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "VulnCheck",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "17084-2",
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-47104 libusb \u003c 1.0.30 Out-of-Bounds Read in parse_iad_array() - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-47104.json"
        }
      ],
      "title": "libusb \u003c 1.0.30 Out-of-Bounds Read in parse_iad_array()"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-47104 (GCVE-0-2026-47104)

FKIE_CVE-2026-47104

GHSA-FH6G-R8PF-WQGW

MSRC_CVE-2026-47104

Tags

Sightings

Nomenclature