PT-2026-6675 · Libuvc · Libuvc

Oneafter · Published 2026-02-06 · Updated 2026-03-05 · CVE-2026-1991

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libuvc versions prior to 0.0.8

Description A flaw exists in libuvc up to version 0.0.7 related to the uvc scan streaming function within the UVC Descriptor Handler component, specifically in the src/device.c file. This issue can lead to a null pointer dereference. Local access is required for exploitation. The details of the issue have been publicly disclosed.

Recommendations Update to version 0.0.8 or later. As a temporary workaround, consider avoiding the use of the uvc scan streaming function until a patch is available.

Exploit

Fix

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

CVE-2026-1991

Affected Products

Libuvc

References · 16

• 🔥 https://vuldb.com/?submit.743388 · Exploit
• 🔥 https://github.com/oneafter/0104/blob/main/repro · Exploit
• https://github.com/libuvc/libuvc/issues/300 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-1991 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-1991 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-1991 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-1991 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-1991 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-1991 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-1991 · Vendor Advisory
• https://github.com/libuvc/libuvc · Note
• https://vuldb.com/?id.344509 · Note
• https://t.me/cveNotify/151089 · Telegram Post
• https://vuldb.com/?ctiid.344509 · Note
• https://twitter.com/CVEnew/status/2019654609313132858 · Twitter Post