CVE-2026-1991
libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Feb 6, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 5, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 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 | VulDB |
| 3.1 | 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 | VulDB |
| 3.0 | 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 | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libuvcn/a |
|
References
- VDB-344509 | libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereferencevdb-entrytechnical-description
- VDB-344509 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #743388 | libuvc v0.0.7 and master-branch NULL Pointer Dereferencethird-party-advisory
- https://github.com/libuvc/libuvc/issues/300issue-tracking
- https://github.com/oneafter/0104/blob/main/reproexploit
- https://github.com/libuvc/libuvc/product
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