CVE-2026-31748

HIGH EPSS 2.9%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: me_daq: Fix potential overrun of firmware buffer `me2600_xilinx_download()` loads the firmware that was requested by `request_firmware()`. It is possible for it to overrun the source buffer because it blindly trusts the file format. It reads a data stream length from the first 4 bytes into variable `file_length` and reads the data stream contents of length `file_length` from offset 16 onwards. Although it checks that the supplied firmware is at least 16 bytes long, it does not check that it is long enough to contain the data stream. Add a test to ensure that the supplied firmware is long enough to contain the header and the data stream. On failure, log an error and return `-EINVAL`.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥2.6.29  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.168
linuxlinux_kernel*≥6.2  –  <6.6.134
linuxlinux_kernel*≥6.7  –  <6.12.81
linuxlinux_kernel*≥6.13  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/1bf8761eb59e94bf7b8c17b2a1ee48f14378b172
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2fc25a4c2e055cd42ea39a1b42c89bfef70e0319
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f39fa07259eb342908e4aa0271dee038a8ce4f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a47ae40339c1048f519df33ff8840731720f57cb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c16ac4e173a05011437a2d868f70cc415339065a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8c607a77aab783f2e38cc2e0f24aa6c8f6d200b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc797d4821c754c701d9714b58bea947e31dbbe0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f3f8ec00cfb8d8e826e30b1138a56355b88e9ba8
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1bf8761eb59e94bf7b8c17b2a1ee48f14378b172
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2fc25a4c2e055cd42ea39a1b42c89bfef70e0319
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f39fa07259eb342908e4aa0271dee038a8ce4f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a47ae40339c1048f519df33ff8840731720f57cb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c16ac4e173a05011437a2d868f70cc415339065a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8c607a77aab783f2e38cc2e0f24aa6c8f6d200b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc797d4821c754c701d9714b58bea947e31dbbe0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f3f8ec00cfb8d8e826e30b1138a56355b88e9ba8
    Patch