CVE-2026-1991 Details
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.
A null pointer dereference vulnerability has been identified in libuvc versions through 0.0.7. The issue arises in the UVC Descriptor Handler, specifically within the uvc_scan_streaming function in src/device.c. This vulnerability leads to a segmentation fault by allowing the processing of malformed UVC descriptors, which the application fails to handle properly. The vulnerability can be exploited locally, and a public exploit is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/libuvc/libuvc/ | [email protected] | Product |
| https://github.com/libuvc/libuvc/issues/300 | [email protected] | ExploitVendor Advisory |
| https://github.com/oneafter/0104/blob/main/repro | [email protected] | Product |
| https://vuldb.com/?ctiid.344509 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.344509 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.743388 | [email protected] | ExploitThird Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| libuvc libuvc | <= 0.0.7 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 5, 2026 | Initial Analysis | [email protected] |
| Feb 6, 2026 | New CVE Received | [email protected] |