CVE-2023-45871

HIGHNVD 7.59.8▲
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-10-15. NVD baseline CVSS 7.5; sources differ by 2.3.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel before 6.5.3. A buffer size may not be adequate for frames larger than the MTU.

CVSS v3
7.5
EG Score
9.8(medium)
EPSS
42.3%
KEV
Not listed

Published

October 15, 2023

Last Modified

June 17, 2026

References (8)

Vendor Advisories for CVE-2023-45871(8)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.220.4) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.89.86) @ jammy2026-05-24ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.2.0.37.38~22.04.15) @ jammy2026-05-24ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.167.184~18.04.135) @ bionic2026-05-24ubuntu
redhatkernel-rt-0:3.10.0-1160.114.2.rt56.1266.el72024-03-14redhat
redhatkpatch-patch2024-03-13redhat
redhatkernel-0:3.10.0-1160.114.2.el72024-03-12redhat
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-0:3.10.0-1062.85.1.el72024-02-27redhat
redhatkernel-0:3.10.0-957.111.1.el72024-02-26redhat
redhatkernel-rt-0:4.18.0-513.18.1.rt7.320.el8_92024-02-20redhat
redhatkernel-0:4.18.0-513.18.1.el8_92024-02-20redhat
redhatkernel-rt-0:4.18.0-305.120.1.rt7.196.el8_42024-01-30redhat
redhatkernel-0:4.18.0-305.120.1.el8_42024-01-30redhat
redhatkernel-0:4.18.0-477.43.1.el8_82024-01-30redhat
redhatkernel-0:5.14.0-70.85.1.el9_02024-01-25redhat
redhatkernel-0:4.18.0-372.87.1.el8_62024-01-25redhat
redhatkernel-rt-0:5.14.0-70.85.1.rt21.156.el9_02024-01-25redhat
redhatkernel-0:5.14.0-284.48.1.el9_22024-01-25redhat
redhatkernel-rt-0:5.14.0-284.48.1.rt14.333.el9_22024-01-25redhat
redhatkernel-0:5.14.0-362.13.1.el9_32023-12-12redhat

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(2)

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

Additional Vendor Advisories

(17)

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 10× in last 7d / 47× 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 106 total refreshes for this CVE.

  1. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-06 16:26 UTCEPSS rescore
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  44. 2026-06-09 18:17 UTCOSV refresh
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Frequently asked(5)

What is CVE-2023-45871?
CVE-2023-45871 is a high vulnerability published on October 15, 2023. An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel before 6.5.3. A buffer size may not be adequate for frames larger than the MTU.
When was CVE-2023-45871 disclosed?
CVE-2023-45871 was first published in the National Vulnerability Database on October 15, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-45871 actively exploited?
CVE-2023-45871 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-45871?
CVE-2023-45871 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2023-45871?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-45871, 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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