What is CVE-2026-46197?

CVE-2026-46197 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 5.14 onward and patched in 5.15.209, 6.1.175, 6.6.140 and others. CVE-2026-46197 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46197?

CVE-2026-46197 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-2026-46197?

Yes, CVE-2026-46197 has been patched. Fixed versions include 5.15.209, 6.1.175, 6.6.140 and others. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46197 actively exploited?

CVE-2026-46197 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2026-46197

High

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)

Package Linux Kernel

Published 2026-05-28

Last modified 2026-06-10

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-787

CVE-2026-46197 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.14 and later are affected. Fixed in 5.15.209, 6.1.175, 6.6.140, 6.12.90, 6.18.32, 7.0.9, 7.1 and their respective stable series.

Affected from

≥ 5.14

Fixed in

✓ 5.15.209 5.15.x ✓ 6.1.175 6.1.x ✓ 6.6.140 6.6.x ✓ 6.12.90 6.12.x ✓ 6.18.32 6.18.x ✓ 7.0.9 7.0.x ✓ 7.1

References

7 total

Kernel Git
https://git.kernel.org/stable/c/045e0ff208f0838a246c10204105126611b267a1

Patch
Kernel Git
https://git.kernel.org/stable/c/6abd3a4417cb73a7d0db7e25bf11fae1074bdba3

Patch
Kernel Git
https://git.kernel.org/stable/c/91c6dc5a41695d02dfc6299f106ac38a6c493e52

Patch
Kernel Git
https://git.kernel.org/stable/c/ccd060b5c7cc75ae7e211c250b97c5b6272e7efc

Patch
Kernel Git
https://git.kernel.org/stable/c/daa8bc5f83814b55b71d2b5b3a090d57a5219c21

Patch

Showing 5 of 7 references View all on NVD

Details

CVE ID CVE-2026-46197

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-06-10

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46197?

CVE-2026-46197 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 5.14 onward and has been patched in 5.15.209, 6.1.175, 6.6.140 and others. CVE-2026-46197 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46197?

CVE-2026-46197 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-2026-46197?

Yes. CVE-2026-46197 has been patched. Fixed versions include 5.15.209, 6.1.175, 6.6.140 and others. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46197 actively exploited?

No. CVE-2026-46197 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.