CVE-2026-64225

Unspecified impact via unchecked CGX speed index

Published Jul 24, 2026 · Updated Jul 24, 2026

Out-of-bounds array access in the octeontx2-af CGX driver in Linux Kernel allows attackers to cause unspecified impact via unspecified vectors. The CGX link-status path uses RESP_LINKSTAT_SPEED values from 0 through 15 directly to index the 13-element cgx_speed_mbps array. The public record does not identify how an attacker controls the returned value or what consequence the out-of-bounds access produces.

CVSS severity7.8
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds array access in the octeontx2-af CGX driver in Linux Kernel allows attackers to cause unspecified impact via unspecified vectors. The CGX link-status path uses RESP_LINKSTAT_SPEED values from 0 through 15 directly to index the 13-element cgx_speed_mbps array. The public record does not identify how an attacker controls the returned value or what consequence the out-of-bounds access produces.

The record

CVE
CVE-2026-64225
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-129
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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=4.20
  2. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <2c3d26b4a62454945ba9ef3af3174d3e40e7afef
  3. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <47a4cf2229be379cf88f92e32e1240337cd6273f
  4. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <8201bf45cc7c1c1a09290c4db8ab1e19801f8fec
  5. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <93d3dc81098cd60fb74d434ba7985ddfd9de5acb
  6. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <94071141f00bc414e8f8f7f5db3b5143d535299f
  7. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <985b5e38ac4f4d5ff03c8bfd8484353b440a1579
  8. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <c0bf0a4f3f1f5f57aa83e1400ba4f56f0abfd542
  9. Affected versionversion=61071a871ea6eb2125ece91c1a0dbb124a318c8a <e043017ac429caee73bd30c5a725659f1a3a4568

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=4.20; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <2c3d26b4a62454945ba9ef3af3174d3e40e7afef; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <47a4cf2229be379cf88f92e32e1240337cd6273f; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <8201bf45cc7c1c1a09290c4db8ab1e19801f8fec; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <93d3dc81098cd60fb74d434ba7985ddfd9de5acb; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <94071141f00bc414e8f8f7f5db3b5143d535299f; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <985b5e38ac4f4d5ff03c8bfd8484353b440a1579; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <c0bf0a4f3f1f5f57aa83e1400ba4f56f0abfd542; version=61071a871ea6eb2125ece91c1a0dbb124a318c8a <e043017ac429caee73bd30c5a725659f1a3a4568

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.

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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

CWE-129Improper Validation of Array Index

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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