Vulnerability-Lookup

GHSA-6RQP-5XH4-J422

Vulnerability from github – Published: 2026-02-06 06:30 – Updated: 2026-02-06 06:30

Details

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.

Severity ?

3.3 (Low)


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

1.9 (Low)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-1991"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-404"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-06T06:15:50Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-6rqp-5xh4-j422",
  "modified": "2026-02-06T06:30:27Z",
  "published": "2026-02-06T06:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1991"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libuvc/libuvc/issues/300"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libuvc/libuvc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/oneafter/0104/blob/main/repro"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.344509"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.344509"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.743388"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "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: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/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"
    }
  ]
}

CVE-2026-1991 (GCVE-0-2026-1991)

Vulnerability from cvelistv5 – Published: 2026-02-06 05:32 – Updated: 2026-02-23 09:21

Title

libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereference

Summary

Severity ?

4.8 (Medium)


                        
                          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

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

3.3 (Low)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

CWE

CWE-476 - NULL Pointer Dereference
CWE-404 - Denial of Service

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.344509	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.344509	signaturepermissions-required
	https://vuldb.com/?submit.743388	third-party-advisory
	https://github.com/libuvc/libuvc/issues/300	issue-tracking
	https://github.com/oneafter/0104/blob/main/repro	exploit
	https://github.com/libuvc/libuvc/	product

Impacted products

	Vendor	Product	Version
	n/a	libuvc	Affected: 0.0.1 Affected: 0.0.2 Affected: 0.0.3 Affected: 0.0.4 Affected: 0.0.5 Affected: 0.0.6 Affected: 0.0.7

Credits

Oneafter (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1991",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-06T20:24:58.826447Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-06T20:25:08.368Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "UVC Descriptor Handler"
          ],
          "product": "libuvc",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "0.0.1"
            },
            {
              "status": "affected",
              "version": "0.0.2"
            },
            {
              "status": "affected",
              "version": "0.0.3"
            },
            {
              "status": "affected",
              "version": "0.0.4"
            },
            {
              "status": "affected",
              "version": "0.0.5"
            },
            {
              "status": "affected",
              "version": "0.0.6"
            },
            {
              "status": "affected",
              "version": "0.0.7"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Oneafter (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 1.7,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "Denial of Service",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-23T09:21:46.700Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-344509 | libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereference",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.344509"
        },
        {
          "name": "VDB-344509 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.344509"
        },
        {
          "name": "Submit #743388 | libuvc v0.0.7 and master-branch NULL Pointer Dereference",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.743388"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/libuvc/libuvc/issues/300"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/oneafter/0104/blob/main/repro"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/libuvc/libuvc/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-05T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-02-05T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-02-07T13:18:57.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereference"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-1991",
    "datePublished": "2026-02-06T05:32:08.140Z",
    "dateReserved": "2026-02-05T15:43:47.726Z",
    "dateUpdated": "2026-02-23T09:21:46.700Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

GHSA-6RQP-5XH4-J422

CVE-2026-1991 (GCVE-0-2026-1991)

Tags

Sightings

Nomenclature