What is CVE-2026-64225?

CVE-2026-64225 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 4.20 onward and patched in 5.10.259, 5.15.210, 6.1.176 and others. CVE-2026-64225 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-64225?

CVE-2026-64225 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-64225?

Yes, CVE-2026-64225 has been patched. Fixed versions include 5.10.259, 5.15.210, 6.1.176 and others. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-64225 actively exploited?

CVE-2026-64225 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-64225

High

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: add bounds check to cgx_speed_mbps index cgx_speed_mbps has 13 elements but RESP_LINKSTAT_SPEED can yield values 0-15. If it returns a value >= 13, this causes an out-of-bounds array access. Add a bounds check and default to speed 0 if the index is out of range.

Package Linux Kernel

Published 2026-07-24

Last modified 2026-08-12

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-129

CVE-2026-64225 is classified as CWE-129

See CWE-129 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.20 and later are affected. Fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.92, 6.18.34, 7.0.11, 7.1 and their respective stable series.

Affected from

≥ 4.20

Fixed in

✓ 5.10.259 5.10.x ✓ 5.15.210 5.15.x ✓ 6.1.176 6.1.x ✓ 6.6.143 6.6.x ✓ 6.12.92 6.12.x ✓ 6.18.34 6.18.x ✓ 7.0.11 7.0.x ✓ 7.1

References

8 total

Kernel Git
https://git.kernel.org/stable/c/2c3d26b4a62454945ba9ef3af3174d3e40e7afef

Patch
Kernel Git
https://git.kernel.org/stable/c/47a4cf2229be379cf88f92e32e1240337cd6273f

Patch
Kernel Git
https://git.kernel.org/stable/c/8201bf45cc7c1c1a09290c4db8ab1e19801f8fec

Patch
Kernel Git
https://git.kernel.org/stable/c/93d3dc81098cd60fb74d434ba7985ddfd9de5acb

Patch
Kernel Git
https://git.kernel.org/stable/c/94071141f00bc414e8f8f7f5db3b5143d535299f

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2026-64225

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-07-24

Modified 2026-08-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-64225?

CVE-2026-64225 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 4.20 onward and has been patched in 5.10.259, 5.15.210, 6.1.176 and others. CVE-2026-64225 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-64225?

CVE-2026-64225 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-64225?

Yes. CVE-2026-64225 has been patched. Fixed versions include 5.10.259, 5.15.210, 6.1.176 and others. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-64225 actively exploited?

No. CVE-2026-64225 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.