---
id: CVE-2023-35001
title: >-
  Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder
  poorly handled vm register contents when CAP_NET_ADMIN is in any user or
  network namespace
summary: >-
  Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder
  poorly handled vm register contents when CAP_NET_ADMIN is in any user or
  network namespace
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.13, < 4.14.322'
  - 'linux_kernel >= 4.15, <= 4.19.291'
  - 'linux_kernel >= 4.20, < 5.4.251'
  - 'linux_kernel >= 5.5, < 5.10.188'
  - 'linux_kernel >= 5.11, < 5.15.121'
  - 'linux_kernel >= 5.16, < 6.1.39'
  - 'linux_kernel >= 6.2, < 6.4.4'
  - debian_linux = 11.0
  - fedora = 37
  - fedora = 38
  - h300s
  - h410c
  - h410s
  - h500s
  - h700s
patched:
  - linux_kernel 6.4.4
published: '2023-07-05'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T00:16:33.403'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-35001'
references:
  - url: >-
      http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
    label: security@ubuntu.com
  - url: >-
      http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
    label: security@ubuntu.com
  - url: 'http://www.openwall.com/lists/oss-security/2023/07/05/3'
    label: security@ubuntu.com
  - url: 'https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html'
    label: security@ubuntu.com
  - url: 'https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html'
    label: security@ubuntu.com
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/
    label: security@ubuntu.com
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/
    label: security@ubuntu.com
  - url: >-
      https://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/
    label: security@ubuntu.com
  - url: 'https://security.netapp.com/advisory/ntap-20230824-0007/'
    label: security@ubuntu.com
  - url: 'https://www.debian.org/security/2023/dsa-5453'
    label: security@ubuntu.com
  - url: 'https://www.openwall.com/lists/oss-security/2023/07/05/3'
    label: security@ubuntu.com
  - url: >-
      http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2023/07/05/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html'
    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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20230824-0007/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2023/dsa-5453'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.openwall.com/lists/oss-security/2023/07/05/3'
    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-769027.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-806742.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-831302.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.01544
epssPercentile: 0.74842
exploits:
  github: 3
  githubRepos:
    - 'https://github.com/synacktiv/CVE-2023-35001'
    - >-
      https://github.com/syedhafiz1234/nftables-oob-read-write-exploit-CVE-2023-35001-
    - 'https://github.com/mrbrelax/Exploit_CVE-2023-35001'
  checkedAt: '2026-10-27T16:41:09.036Z'
exploitAvailable: true
ingestedAt: '2026-10-15T01:08:04.203Z'
---

## Overview

Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register contents when CAP_NET_ADMIN is in any user or network namespace

## Affected

- `linux_kernel >= 3.13, < 4.14.322`
- `linux_kernel >= 4.15, <= 4.19.291`
- `linux_kernel >= 4.20, < 5.4.251`
- `linux_kernel >= 5.5, < 5.10.188`
- `linux_kernel >= 5.11, < 5.15.121`
- `linux_kernel >= 5.16, < 6.1.39`
- `linux_kernel >= 6.2, < 6.4.4`
- `debian_linux = 11.0`
- `fedora = 37`
- `fedora = 38`
- `h300s`
- `h410c`
- `h410s`
- `h500s`
- `h700s`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.4.4`