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libuvc — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-1991

A vulnerability was detected in libuvc up to 0.0.7. Affected is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Products
libuvc
Affected versions
0.0.6-1, 0.0.6-1.1, 0.0.6-2, 0.0.7-1, 0.0.7-2, 0.0.7-3, 0.0.7-4
Fixed versions
Not specified
CVEs
CVE-2026-1991
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 02:42 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-1991

core-osv · Original source

Published 6 Feb 2026, 06:15 UTC

A vulnerability was detected in libuvc up to 0.0.7. Affected is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

osv:UBUNTU-CVE-2026-1991

libuvc

Fixed versions: Not specified

libuvc

Fixed versions: Not specified

libuvc

Fixed versions: Not specified

libuvc

Fixed versions: Not specified

libuvc

Fixed versions: Not specified

libuvc

Fixed versions: Not specified

libuvc

Fixed versions: Not specified

Complete source record
{
  "id": "b6b31c88026748aeaa6f89f08fda81f9a0e1e98bc36c820d1aaae7e9fb3e901d",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-1991",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-1991",
    "summary": "A vulnerability was detected in libuvc up to 0.0.7. Affected is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:UBUNTU-CVE-2026-1991",
    "products": [
      {
        "name": {
          "value": "libuvc",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0.6-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libuvc",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0.6-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libuvc",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0.6-1.1",
            "evidence": "/affected/2/versions"
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      },
      {
        "name": {
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        },
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        "affected_versions": [
          {
            "value": "0.0.6-2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "0.0.7-1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libuvc",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0.7-2",
            "evidence": "/affected/4/versions"
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          {
            "value": "0.0.7-3",
            "evidence": "/affected/4/versions"
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      {
        "name": {
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        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0.7-4",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libuvc",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.0.7-3",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "0.0.7-4",
            "evidence": "/affected/6/versions"
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        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-1991",
      "aliases": [
        "UBUNTU-CVE-2026-1991"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
        },
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libuvc",
            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=bionic",
            "ecosystem": "Ubuntu:18.04:LTS"
          },
          "versions": [
            "0.0.6-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1991.json"
          },
          "ecosystem_specific": {
            "binaries": [
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                "binary_name": "libuvc0",
                "binary_version": "0.0.6-1"
              }
            ]
          }
        },
        {
          "ranges": [
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              "type": "ECOSYSTEM",
              "events": [
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          ],
          "package": {
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            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=focal",
            "ecosystem": "Ubuntu:20.04:LTS"
          },
          "versions": [
            "0.0.6-1"
          ],
          "database_specific": {
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          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libuvc0",
                "binary_version": "0.0.6-1"
              }
            ]
          }
        },
        {
          "ranges": [
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              ]
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          ],
          "package": {
            "name": "libuvc",
            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=jammy",
            "ecosystem": "Ubuntu:22.04:LTS"
          },
          "versions": [
            "0.0.6-1.1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1991.json"
          },
          "ecosystem_specific": {
            "binaries": [
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                "binary_name": "libuvc0",
                "binary_version": "0.0.6-1.1"
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        },
        {
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            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=noble",
            "ecosystem": "Ubuntu:24.04:LTS"
          },
          "versions": [
            "0.0.6-2",
            "0.0.7-1"
          ],
          "database_specific": {
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          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libuvc0",
                "binary_version": "0.0.7-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
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          ],
          "package": {
            "name": "libuvc",
            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "0.0.7-2",
            "0.0.7-3"
          ],
          "database_specific": {
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          },
          "ecosystem_specific": {
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              {
                "binary_name": "libuvc0",
                "binary_version": "0.0.7-3"
              }
            ]
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        {
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                {
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          ],
          "package": {
            "name": "libuvc",
            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "0.0.7-4"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1991.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libuvc0",
                "binary_version": "0.0.7-4"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
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              ]
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          ],
          "package": {
            "name": "libuvc",
            "purl": "pkg:deb/ubuntu/libuvc?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "0.0.7-3",
            "0.0.7-4"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1991.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libuvc0",
                "binary_version": "0.0.7-4"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:58:47.200331594Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-1991"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-1991",
        "https://www.cve.org/CVERecord?id=CVE-2026-1991",
        "https://github.com/libuvc/libuvc/issues/300",
        "https://github.com/libuvc/libuvc/",
        "https://github.com/oneafter/0104/blob/main/repro",
        "https://vuldb.com/?ctiid.344509",
        "https://vuldb.com/?id.344509",
        "https://vuldb.com/?submit.743388"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-1991",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/1/score"
  },
  "source_id": "core-osv",
  "document_id": 359053,
  "published_at": "2026-02-06T06:15:00+00:00"
}