High 7.8Published Jul 5, 2023

CVE-2023-35001Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability

Updated under an hour ago (Oct 28, 2026, 3:40 AM ET)

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It affects Linux Kernel and 12 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: canonical
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux Kernel linux:kernel (from the name)	v3.13-rc1	CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.0 before V3.1.5	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.13 before 4.14.322; from 4.15 through 4.19.291; from 4.20 before 5.4.251; from 5.5 before 5.10.188; from 5.11 before 5.15.121; from 5.16 before 6.1.39; from 6.2 before 6.4.4	NVD
debian debian_linux debian:debian_linux	11.0	NVD
fedoraproject fedora fedoraproject:fedora	37; 38	NVD
netapp h300s netapp:h300s	all versions	NVD
netapp h410c netapp:h410c	all versions	NVD
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References

References

https://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/	issue-tracking, patch, vendor-advisory
https://www.openwall.com/lists/oss-security/2023/07/05/3	mailing-list
http://www.openwall.com/lists/oss-security/2023/07/05/3	mailing-list, third-party-advisory
https://www.debian.org/security/2023/dsa-5453	third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/	mailing-list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/	mailing-list
http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html	third-party-advisory, vdb-entry
https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html	patch, third-party-advisory
https://security.netapp.com/advisory/ntap-20230824-0007/	third-party-advisory, vdb-entry
http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html	third-party-advisory, vdb-entry
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.