SB2026072724 - Numeric Truncation Error in Linux kernel ipv4

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Main Vulnerability Database SB2026072724

SB2026072724 - Numeric Truncation Error in Linux kernel ipv4

Published: July 27, 2026

Security Bulletin ID SB2026072724
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Numeric Truncation Error (CVE-ID: CVE-2024-14040)

CWE-ID: CWE-197 - Numeric Truncation Error

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause incorrect nexthop group behavior.

The vulnerability exists due to an integer truncation issue in the nexthop group weight handling in the Linux kernel when processing nexthop group configuration. A local user can supply specially crafted weight values to cause incorrect nexthop group behavior.

The issue arises in environments using large ECMP weight ratios that exceed 8-bit weight representation.


Remediation

Install update from vendor's website.

References