libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereference
Priority MEDIUM 55CWE-404Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00214 11th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | libuvc | 0.0.1; 0.0.2; 0.0.3; 0.0.4; 0.0.5; 0.0.6; 0.0.7 | — | No fix listed | CNA |
- libuvc Vendor— Affected 0.0.1; 0.0.2; 0.0.3; 0.0.4; 0.0.5; 0.0.6; 0.0.7 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1991
- 2026-10-03 Alias added: GHSA-6rqp-5xh4-j422
References
Sources
- CVE-2026-1991 · CVE Program
- CVE-2026-1991 · NVD
- FIRST EPSS
- GHSA-6rqp-5xh4-j422 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-1991 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences