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CVE-2023-35001

HighPublished

Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability

Published: Jul 5, 2023
Updated: Feb 13, 2025
Assigning CNA: canonical
Evidence observed: Aug 25, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

1.5%

Low · next 30 days

Percentile: 72.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

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

Sources

nftables-oob-read-write-exploit-CVE-2023-35001-Exploit
nftables oob read/write exploit (CVE-2023-35001)
CVE-2023-35001Exploit
Pwn2Own Vancouver 2023 Ubuntu LPE exploit
Exploit_CVE-2023-35001PoC
Exploit code for CVE-2023-35001, providing a proof-of-concept for the vulnerability.

Responsible use

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