U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-31405 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e kernel.org Patch 
https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30 kernel.org Patch 
https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647 kernel.org Patch 
https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8 kernel.org Patch 
https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe kernel.org Patch 
https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0 kernel.org Patch 
https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629 kernel.org Patch 
https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31405
NVD Published Date:
04/06/2026
NVD Last Modified:
05/20/2026
Source:
kernel.org