CVE-2023-39192

MEDIUMNVD 6.76.7—
EchelonGraph scoreMEDIUM confidence

Score 6.7 from GitHub Security Advisory published 2023-10-09. NVD baseline CVSS 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.7Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash or information disclosure.

CVSS v3
6.7
EG Score
6.7(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity67% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
32.2%
KEV
Not listed

Published

October 9, 2023

Last Modified

November 21, 2024

References (11)

Vendor Advisories for CVE-2023-39192(1)

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

Patch Availability(19)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gke (4.15.0.1157.147) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.2.0.39.39) @ lunar2026-05-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.248.254) @ xenial2026-05-24ubuntu
ubuntulinux-tools-oracle-lts-20.04 (5.4.0.1115.108) @ focal2026-05-24ubuntu
ubuntulinux-tools-kvm (6.2.0.1018.18) @ lunar2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04 (6.2.0.39.40~22.04.16) @ jammy2026-05-24ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1100.130) @ focal2026-05-24ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (5.15.0.91.92) @ jammy2026-05-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1035 (5.4.0-1035.39) @ focal2026-05-24ubuntu
ubuntulinux-tools-gkeop-5.15 (5.15.0.1034.33) @ jammy2026-05-24ubuntu
ubuntulinux-tools-intel-iotg (5.15.0.1046.46) @ jammy2026-05-24ubuntu
ubuntulinux-tools-gkeop-5.4 (5.4.0.1083.81) @ focal2026-05-24ubuntu
ubuntulinux-tools-gcp (6.2.0.1021.23~22.04.1) @ jammy2026-05-24ubuntu
ubuntulinux-tools-iot (5.4.0.1028.26) @ focal2026-05-24ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.220.204) @ bionic2026-05-24ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1046.52~20.04.36) @ focal2026-05-24ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.91.101~20.04.48) @ focal2026-05-24ubuntu
redhatkernel-0:4.18.0-553.el8_102024-05-22redhat
redhatkernel-rt-0:4.18.0-553.rt7.342.el8_102024-05-22redhat

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

(19)

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 12× in last 7d / 49× 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 105 total refreshes for this CVE.

  1. 2026-07-23 02:25 UTCEG score recompute
  2. 2026-07-22 23:12 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-39192?
CVE-2023-39192 is a medium vulnerability published on October 9, 2023. A flaw was found in the Netfilter subsystem in the Linux kernel. The xtu32 module did not validate the fields in the xtu32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash…
When was CVE-2023-39192 disclosed?
CVE-2023-39192 was first published in the National Vulnerability Database on October 9, 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-2023-39192 actively exploited?
CVE-2023-39192 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-39192?
CVE-2023-39192 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2023-39192?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-39192, 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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