CVE-2024-45030

Payload corruption via overlapping receive ring buffers

Published Sep 11, 2024 · Updated Aug 5, 2026

Memory corruption in the Linux kernel igb driver allows attackers to corrupt transmitted network payloads under large-fragment builds. The driver selects 2K receive buffers without accounting for enlarged shared-info space, allowing one packet's fragment list to overlap the next packet head in a 4K page. The condition requires a kernel built with a large MAX_SKB_FRAGS value and traffic through an igb interface; observed failures include broken SSH connections.

CVSS severity9.8
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the Linux kernel igb driver allows attackers to corrupt transmitted network payloads under large-fragment builds. The driver selects 2K receive buffers without accounting for enlarged shared-info space, allowing one packet's fragment list to overlap the next packet head in a 4K page. The condition requires a kernel built with a large MAX_SKB_FRAGS value and traffic through an igb interface; observed failures include broken SSH connections.

The record

CVE
CVE-2024-45030
Published
Sep 11, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3948b05950fdd64002a5f182c65ba5cf2d53cf71 <8aba27c4a5020abdf60149239198297f88338a8d
  2. Affected versionversion=3948b05950fdd64002a5f182c65ba5cf2d53cf71 <8ea80ff5d8298356d28077bc30913ed37df65109
  3. Affected versionversion=3948b05950fdd64002a5f182c65ba5cf2d53cf71 <b52bd8bcb9e8ff250c79b44f9af8b15cae8911ab
  4. Affected versionversion=6.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3948b05950fdd64002a5f182c65ba5cf2d53cf71 <8aba27c4a5020abdf60149239198297f88338a8d; version=3948b05950fdd64002a5f182c65ba5cf2d53cf71 <8ea80ff5d8298356d28077bc30913ed37df65109; version=3948b05950fdd64002a5f182c65ba5cf2d53cf71 <b52bd8bcb9e8ff250c79b44f9af8b15cae8911ab; version=6.4

Published CVSS scores

9.8Linux kernel CVE teamCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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