SB20260325162 - Improper control of a resource through its lifetime in Linux kernel net usb driver



SB20260325162 - Improper control of a resource through its lifetime in Linux kernel net usb driver

Published: March 25, 2026

Security Bulletin ID SB20260325162
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-23290)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the pegasus USB driver when handling USB endpoints during device probing. A remote attacker can connect a malicious USB device with invalid or unexpected endpoint configurations to cause a denial of service.

Exploitation does not require authentication or user interaction beyond physically connecting the device; however, the attack vector is considered local due to physical access requirement.


Remediation

Install update from vendor's website.