What is CVE-2026-46218?

CVE-2026-46218 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 4.2 onward and patched in 6.1.175, 6.6.140, 6.12.90 and others. CVE-2026-46218 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46218?

CVE-2026-46218 has a CVSS score of 7.1 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:N/A:H.

Is there a patch available for CVE-2026-46218?

Yes, CVE-2026-46218 has been patched. Fixed versions include 6.1.175, 6.6.140, 6.12.90 and others. If you are running Linux kernel 4.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46218 actively exploited?

CVE-2026-46218 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46218

High

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Add bounds checking to ib_{get,set}_value The uvd/vce/vcn code accesses the IB at predefined offsets without checking that the IB is large enough. Check the bounds here. The caller is responsible for making sure it can handle arbitrary return values. Also make the idx a uint32_t to prevent overflows causing the condition to fail.

Package Linux Kernel

Published 2026-05-28

Last modified 2026-06-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.2 and later are affected. Fixed in 6.1.175, 6.6.140, 6.12.90, 6.18.32, 7.0.9, 7.1-rc1 and their respective stable series.

Affected from

≥ 4.2

Fixed in

✓ 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-rc1

References

The following references provide additional information about CVE-2026-46218 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/0fb5cb556b249b2b64c0f818136c4c3e838ef53f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5da6c6430be0acb25b4242bce0323fc514d4e3cf
Patch
Kernel patch commit
https://git.kernel.org/stable/c/66085e206431ef88ce36f53c1f53d570790ccc9e
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2026-46218

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-06-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46218?

CVE-2026-46218 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 4.2 onward and has been patched in 6.1.175, 6.6.140, 6.12.90 and others. CVE-2026-46218 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46218?

CVE-2026-46218 has a CVSS score of 7.1 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:N/A:H.
Is there a patch available for CVE-2026-46218?

Yes — CVE-2026-46218 has been patched. Fixed versions include 6.1.175, 6.6.140, 6.12.90 and others. If you are running Linux kernel 4.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46218 actively exploited?

No — CVE-2026-46218 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.