CVE-2023-35001

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2023-07-05. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 7.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

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)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
72%
KEV
Not listed

Published

July 5, 2023

Last Modified

November 21, 2024

References (22)

Vendor Advisories for CVE-2023-35001(16)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(23)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-modules-extra-5.4.0-1109-gcp (5.4.0-1109.118) @ focal2026-05-24ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.214.199) @ xenial2026-05-24ubuntu
ubuntulinux-image-iot (5.4.0.1018.16) @ focal2026-05-24ubuntu
ubuntulowlatency-4.4 (4.4.0-168) @ xenial2026-05-24ubuntu
ubuntulinux-headers-generic-hwe-22.04 (5.19.0.50.22) @ jammy2026-05-24ubuntu
ubuntulinux-tools-oem-22.04c (6.1.0.1019.19) @ jammy2026-05-24ubuntu
redhatkpatch-patch2024-03-12redhat
redhatkernel-rt-0:4.18.0-193.128.1.rt13.179.el8_22024-03-12redhat
redhatkernel-0:4.18.0-193.128.1.el8_22024-03-12redhat
redhatkernel-0:3.10.0-1062.80.1.el72023-11-15redhat
redhatkernel-0:3.10.0-1160.102.1.el72023-10-10redhat
redhatkernel-rt-0:3.10.0-1160.102.1.rt56.1250.el72023-10-10redhat
redhatkernel-rt-0:5.14.0-70.75.1.rt21.146.el9_02023-10-10redhat
redhatkernel-0:4.18.0-372.75.1.el8_62023-10-10redhat
redhatkernel-0:5.14.0-70.75.1.el9_02023-10-10redhat
redhatkernel-0:3.10.0-957.106.1.el72023-10-03redhat
redhatkernel-0:4.18.0-147.90.1.el8_12023-09-19redhat
redhatkernel-rt-0:4.18.0-477.27.1.rt7.290.el8_82023-09-19redhat
redhatkernel-0:4.18.0-477.27.1.el8_82023-09-19redhat
redhatkernel-rt-0:5.14.0-284.30.1.rt14.315.el9_22023-09-12redhat
redhatkernel-0:5.14.0-284.30.1.el9_22023-09-12redhat
redhatkernel-0:4.18.0-305.103.1.el8_42023-09-05redhat
redhatkernel-rt-0:4.18.0-305.103.1.rt7.178.el8_42023-09-05redhat

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.

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 50× 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.

Showing the most recent 100 of 117 total refreshes for this CVE.

  1. 2026-07-26 14:52 UTCEPSS rescore
  2. 2026-07-25 14:16 UTCEPSS rescore
  3. 2026-07-24 14:16 UTCEPSS rescore
  4. 2026-07-23 14:16 UTCEPSS rescore
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  6. 2026-07-23 02:23 UTCEG score recompute
  7. 2026-07-22 23:10 UTCEG score recompute
  8. 2026-07-22 14:06 UTCEPSS rescore
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  21. 2026-07-15 16:19 UTCOSV refresh
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  24. 2026-07-13 22:28 UTCEPSS rescore
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  1. 2026-07-13 06:11 UTCEPSS rescore
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  23. 2026-06-28 04:55 UTCEPSS rescore
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  25. 2026-06-27 16:34 UTCOSV refresh
  26. 2026-06-27 03:07 UTCEPSS rescore
  27. 2026-06-27 03:07 UTCEPSS rescore
  28. 2026-06-25 13:48 UTCEPSS rescore
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  40. 2026-06-18 17:51 UTCEPSS rescore
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  44. 2026-06-16 17:51 UTCEPSS rescore
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  46. 2026-06-15 17:47 UTCEPSS rescore
  47. 2026-06-14 23:16 UTCEPSS rescore
  48. 2026-06-13 22:59 UTCEPSS rescore
  49. 2026-06-13 22:59 UTCEPSS rescore
  50. 2026-06-12 23:10 UTCEPSS rescore
  51. 2026-06-12 23:10 UTCEPSS rescore
  52. 2026-06-11 13:59 UTCEPSS rescore
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  54. 2026-06-10 22:17 UTCEPSS rescore
  55. 2026-06-10 13:21 UTCEPSS rescore
  56. 2026-06-10 03:17 UTCOSV refresh
  57. 2026-06-08 14:16 UTCEPSS rescore
  58. 2026-06-08 14:15 UTCEPSS rescore
  59. 2026-06-07 15:23 UTCEPSS rescore
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  61. 2026-06-06 13:46 UTCEPSS rescore
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  63. 2026-06-05 22:46 UTCEPSS rescore
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  65. 2026-06-05 06:09 UTCEPSS rescore
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  67. 2026-06-04 13:11 UTCEPSS rescore
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  69. 2026-06-02 20:12 UTCEPSS rescore
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  72. 2026-06-01 13:51 UTCEPSS rescore
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  74. 2026-05-31 22:30 UTCEPSS rescore
  75. 2026-05-31 22:29 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 ↗

Related CVEs(same vendor + same CWE)

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 2% probability of exploitation in the next 30 days, which ranks it in the top 28.2% of all scored CVEs.
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

Explore the affected products and dependency analysis for CVE-2023-35001

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