CVE-2026-31405

CRITICAL EPSS 41.8%
Published Apr 6, 20262mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Apr 6, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
41.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 14

VendorProductVersionRange
linuxlinux_kernel*≥2.6.12.1  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.167
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.78
linuxlinux_kernel*≥6.13  –  <6.18.19
linuxlinux_kernel*≥6.19  –  <6.19.9
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92
    Patch