---
id: CVE-2023-45871
title: >-
  An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the
  IGB driver in the Linux kernel before 6.5.3
summary: >-
  An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the
  IGB driver in the Linux kernel before 6.5.3. A buffer size may not be adequate
  for frames larger than the MTU.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-131
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.4, < 4.14.326'
  - 'linux_kernel >= 4.15, < 4.19.295'
  - 'linux_kernel >= 4.20, < 5.4.257'
  - 'linux_kernel >= 5.5, < 5.10.195'
  - 'linux_kernel >= 5.11, < 5.15.132'
  - 'linux_kernel >= 5.16, < 6.1.53'
  - 'linux_kernel >= 6.2, < 6.4.16'
  - 'linux_kernel >= 6.5, < 6.5.3'
  - debian_linux = 10.0
patched:
  - linux_kernel 6.5.3
published: '2023-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:17:09.987'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-45871'
references:
  - url: 'https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3'
    label: cve@mitre.org
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bb5ed01cd2428cd25b1c88a3a9cba87055eb289f
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html'
    label: cve@mitre.org
  - url: 'https://security.netapp.com/advisory/ntap-20231110-0001/'
    label: cve@mitre.org
  - url: 'https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=bb5ed01cd2428cd25b1c88a3a9cba87055eb289f
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20231110-0001/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00635
epssPercentile: 0.50232
ingestedAt: '2026-10-15T03:30:12.630Z'
---

## Overview

An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel before 6.5.3. A buffer size may not be adequate for frames larger than the MTU.

## Affected

- `linux_kernel >= 3.4, < 4.14.326`
- `linux_kernel >= 4.15, < 4.19.295`
- `linux_kernel >= 4.20, < 5.4.257`
- `linux_kernel >= 5.5, < 5.10.195`
- `linux_kernel >= 5.11, < 5.15.132`
- `linux_kernel >= 5.16, < 6.1.53`
- `linux_kernel >= 6.2, < 6.4.16`
- `linux_kernel >= 6.5, < 6.5.3`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.5.3`