NULL Pointer Dereference Affecting libusb1 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (9th percentile)

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  • Snyk IDSNYK-CENTOS10-LIBUSB1-17352030
  • published17 Jun 2026
  • disclosed27 May 2026

Introduced: 27 May 2026

CVE-2026-23679  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 libusb1.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libusb1 package and not the libusb1 package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows attackers to crash applications by supplying a malformed USB configuration descriptor where an interface claims bNumEndpoints greater than zero but is followed by a class-specific descriptor whose bLength exceeds the remaining buffer size, causing parse_interface() to return early without allocating the endpoint array. Attackers can exploit this flaw through libusb_get_active_config_descriptor or libusb_get_config_descriptor by providing crafted descriptors via virtualized USB passthrough, file-based descriptor parsing, or network sources, causing any application iterating over endpoints to dereference a NULL endpoint pointer and crash.

CVSS Base Scores

version 3.1