SB20260502100 - Out-of-bounds read in Linux kernel comedi drivers driver

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Main Vulnerability Database SB20260502100

SB20260502100 - Out-of-bounds read in Linux kernel comedi drivers driver

Published: May 2, 2026

Security Bulletin ID SB20260502100
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-31748)

CWE-ID: CWE-125 - Out-of-bounds read

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


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in me2600_xilinx_download() when parsing a crafted firmware file. A local user can provide a specially crafted firmware file to cause a denial of service.

The issue occurs because the data stream length is read from the first 4 bytes of the firmware and the function reads data from offset 16 without verifying that the supplied firmware contains the full data stream.


Remediation

Install update from vendor's website.

References