What is CVE-2026-46030?

CVE-2026-46030 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 6.18 onward and patched in 6.18.27, 7.0.4 and 7.1. CVE-2026-46030 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46030?

CVE-2026-46030 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-2026-46030?

Yes, CVE-2026-46030 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46030 actively exploited?

CVE-2026-46030 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2026-46030

Medium

In the Linux kernel, the following vulnerability has been resolved: EDAC/versalnet: Fix device_node leak in mc_probe() of_parse_phandle() returns a device_node reference that must be released with of_node_put(). The original code never freed r5_core_node on any exit path, causing a memory leak. Fix this by using the automatic cleanup attribute __free(device_node) which ensures of_node_put() is called when the variable goes out of scope.

Package Linux Kernel

Published 2026-05-27

Last modified 2026-06-16

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-401

CVE-2026-46030 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.18 and later are affected. Fixed in 6.18.27, 7.0.4, 7.1 and their respective stable series.

Affected from

≥ 6.18

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/17e136993b2b5111d1ee1c57bbd188ae0bb0e128

Patch
Kernel Git
https://git.kernel.org/stable/c/5c709b376460ff322580c41600e31c02f7cc0307

Patch
Kernel Git
https://git.kernel.org/stable/c/b6e61356ad24987be40bf25369d22dd8dd00a513

Patch

Details

CVE ID CVE-2026-46030

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-27

Modified 2026-06-16

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46030?

CVE-2026-46030 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.27, 7.0.4 and 7.1. CVE-2026-46030 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46030?

CVE-2026-46030 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-2026-46030?

Yes. CVE-2026-46030 has been patched. Fixed versions include 6.18.27, 7.0.4 and 7.1. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46030 actively exploited?

No. CVE-2026-46030 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.