What is CVE-2026-46284?

CVE-2026-46284 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 6.15 onward and patched in 6.18.27, 7.0.4 and 7.1. CVE-2026-46284 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46284?

CVE-2026-46284 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-46284?

Yes, CVE-2026-46284 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46284 actively exploited?

CVE-2026-46284 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2026-46284

Medium

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix early boot crash on parameters without '=' separator If hugepages, hugepagesz, or default_hugepagesz are specified on the kernel command line without the '=' separator, early parameter parsing passes NULL to hugetlb_add_param(), which dereferences it in strlen() and can crash the system during early boot. Reject NULL values in hugetlb_add_param() and return -EINVAL instead.

Package Linux Kernel

Published 2026-06-08

Last modified 2026-07-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2026-46284 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.15 and later are affected. Fixed in 6.18.27, 7.0.4, 7.1 and their respective stable series.

Affected from

≥ 6.15

Fixed in

✓ 6.18.27 6.18.x ✓ 7.0.4 7.0.x ✓ 7.1

References

3 total

Kernel Git
https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a

Patch
Kernel Git
https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015

Patch
Kernel Git
https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c

Patch

Details

CVE ID CVE-2026-46284

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-08

Modified 2026-07-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46284?

CVE-2026-46284 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 6.15 onward and has been patched in 6.18.27, 7.0.4 and 7.1. CVE-2026-46284 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46284?

CVE-2026-46284 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-46284?

Yes. CVE-2026-46284 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46284 actively exploited?

No. CVE-2026-46284 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.