libuvc up to 0.0.7 UVC Descriptor src/device.c uvc_scan_streaming null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in libuvc up to 0.0.7. Affected by this vulnerability is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2026-1991. The attack can only be executed locally. Furthermore, there is an exploit available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in libuvc up to 0.0.7. It has been declared as problematic. Affected by this vulnerability is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-1991. The exploitation appears to be easy. An attack has to be approached locally. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet. The vulnerability scanner Nessus provides a plugin with the ID 298196 (Linux Distros Unpatched Vulnerability : CVE-2026-1991), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (298196) and EUVD (EUVD-2026-5585). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 298196
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-1991

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/05/2026 Advisory disclosed
02/05/2026 +0 days VulDB entry created
03/05/2026 +28 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 300
Status: Not defined

CVE: CVE-2026-1991 (🔒)
GCVE (CVE): GCVE-0-2026-1991
GCVE (VulDB): GCVE-100-344509
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/05/2026 16:49
Updated: 03/05/2026 22:13
Changes: 02/05/2026 16:49 (57), 02/06/2026 07:24 (30), 02/06/2026 19:52 (2), 02/07/2026 13:18 (1), 03/05/2026 22:13 (12)
Complete: 🔍
Submitter: Oneafter
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #743388: libuvc v0.0.7 and master-branch NULL Pointer Dereference (by Oneafter)

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