CVE-2023-35001

HIGHNVD 7.87.8—Elevated

7.8

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 v3: 7.8
EG Score: 7.8(medium)
EPSS: 79.8%
KEV: Not listed

Published

July 5, 2023

Last Modified

November 21, 2024

References (22)

security@ubuntuhttp://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
security@ubuntuhttp://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
security@ubuntuhttp://www.openwall.com/lists/oss-security/2023/07/05/3
security@ubuntuhttps://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
security@ubuntuhttps://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
security@ubuntuhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/
security@ubuntuhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/
security@ubuntuhttps://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/
security@ubuntuhttps://security.netapp.com/advisory/ntap-20230824-0007/
security@ubuntuhttps://www.debian.org/security/2023/dsa-5453
security@ubuntuhttps://www.openwall.com/lists/oss-security/2023/07/05/3
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/07/05/3
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html

Patch Availability(23)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-modules-extra-5.4.0-1109-gcp (5.4.0-1109.118) @ focal	2026-05-24	ubuntu
ubuntu	linux-virtual-hwe-16.04-edge (4.15.0.214.199) @ xenial	2026-05-24	ubuntu
ubuntu	linux-image-iot (5.4.0.1018.16) @ focal	2026-05-24	ubuntu
ubuntu	lowlatency-4.4 (4.4.0-168) @ xenial	2026-05-24	ubuntu
ubuntu	linux-headers-generic-hwe-22.04 (5.19.0.50.22) @ jammy	2026-05-24	ubuntu
ubuntu	linux-tools-oem-22.04c (6.1.0.1019.19) @ jammy	2026-05-24	ubuntu
redhat	kpatch-patch	2024-03-12	redhat
redhat	kernel-rt-0:4.18.0-193.128.1.rt13.179.el8_2	2024-03-12	redhat
redhat	kernel-0:4.18.0-193.128.1.el8_2	2024-03-12	redhat
redhat	kernel-0:3.10.0-1062.80.1.el7	2023-11-15	redhat
redhat	kernel-0:3.10.0-1160.102.1.el7	2023-10-10	redhat
redhat	kernel-rt-0:3.10.0-1160.102.1.rt56.1250.el7	2023-10-10	redhat
redhat	kernel-rt-0:5.14.0-70.75.1.rt21.146.el9_0	2023-10-10	redhat
redhat	kernel-0:4.18.0-372.75.1.el8_6	2023-10-10	redhat
redhat	kernel-0:5.14.0-70.75.1.el9_0	2023-10-10	redhat
redhat	kernel-0:3.10.0-957.106.1.el7	2023-10-03	redhat
redhat	kernel-0:4.18.0-147.90.1.el8_1	2023-09-19	redhat
redhat	kernel-rt-0:4.18.0-477.27.1.rt7.290.el8_8	2023-09-19	redhat
redhat	kernel-0:4.18.0-477.27.1.el8_8	2023-09-19	redhat
redhat	kernel-rt-0:5.14.0-284.30.1.rt14.315.el9_2	2023-09-12	redhat
redhat	kernel-0:5.14.0-284.30.1.el9_2	2023-09-12	redhat
redhat	kernel-0:4.18.0-305.103.1.el8_4	2023-09-05	redhat
redhat	kernel-rt-0:4.18.0-305.103.1.rt7.178.el8_4	2023-09-05	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 57× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-23 21:31 UTCEPSS rescore
2026-06-23 21:31 UTCEPSS rescore
2026-06-21 14:55 UTCEPSS rescore
2026-06-21 14:55 UTCEPSS rescore
2026-06-21 01:58 UTCEPSS rescore
2026-06-21 01:58 UTCEPSS rescore
2026-06-19 19:24 UTCEPSS rescore
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2026-06-18 17:51 UTCEPSS rescore
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2026-06-17 17:51 UTCEPSS rescore
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2026-06-16 17:51 UTCEPSS rescore
2026-06-16 17:51 UTCEPSS rescore
2026-06-15 17:47 UTCEPSS rescore
2026-06-14 23:16 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
2026-06-12 23:10 UTCEPSS rescore
2026-06-12 23:10 UTCEPSS rescore
2026-06-11 13:59 UTCEPSS rescore
2026-06-11 13:59 UTCEPSS rescore
2026-06-10 22:17 UTCEPSS rescore
2026-06-10 13:21 UTCEPSS rescore
2026-06-10 03:17 UTCOSV refresh

Show 36 more

2026-06-08 14:16 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-24 22:01 UTCEG score recompute
2026-05-24 22:01 UTCVendor advisory
2026-05-24 22:01 UTCGHSA enrichment
2026-05-24 16:52 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCsyedhafiz1234/nftables-oob-read-write-exploit-CVE-2023-35001-
First seen Sep 4, 2023
nftables oob read/write exploit (CVE-2023-35001)
Open source ↗
GitHub PoCsynacktiv/CVE-2023-35001
First seen Sep 1, 2023
Pwn2Own Vancouver 2023 Ubuntu LPE exploit
Open source ↗

Frequently asked(5)

What is CVE-2023-35001?

CVE-2023-35001 is a high vulnerability published on July 5, 2023. Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nftbyteorder poorly handled vm register contents when CAPNET_ADMIN is in any user or network namespace

When was CVE-2023-35001 disclosed?

CVE-2023-35001 was first published in the National Vulnerability Database on July 5, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-35001 actively exploited?

CVE-2023-35001 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-35001?

CVE-2023-35001 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2023-35001?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-35001, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-35001

Published

Last Modified

References (22)

Patch Availability(23)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Publicly available exploits

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-35001?

Same vendor

Same CWE

CVE-2023-35001

📅 Published

🔄 Last Modified

🔗 References (22)

Patch Availability(23)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-35001?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

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Published

Last Modified

References (22)

Frequently asked(5)

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