What is CVE-2026-68258?

CVE-2026-68258 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 5.18 onward and patched in 6.18.42, 7.1.6 and 7.2. CVE-2026-68258 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-68258?

CVE-2026-68258 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-2026-68258?

Yes, CVE-2026-68258 has been patched. Fixed versions include 6.18.42, 7.1.6 and 7.2. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-68258 actively exploited?

CVE-2026-68258 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-68258

High

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds on CRIU restore queue type and mqd size We weren't checking whether the values provided in the private data in kfd CRIU restore were within bounds. For queue type, add a KFD_QUEUE_TYPE_MAX and ensure the provided type is less than it. For mqd_size, add new function mqd_size_from_queue_type and confirm that the provided mqd_size matches expectations. (cherry picked from commit f19d8086f6644083c913d70bfdeee20e1b6f46a5)

Package Linux Kernel

Published 2026-08-10

Last modified 2026-08-18

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 5.18 and later are affected. Fixed in 6.18.42, 7.1.6, 7.2 and their respective stable series.

Affected from

≥ 5.18

Fixed in

✓ 6.18.42 6.18.x ✓ 7.1.6 7.1.x ✓ 7.2

References

3 total

Details

CVE ID CVE-2026-68258

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2026-08-10

Modified 2026-08-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-68258?

CVE-2026-68258 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 5.18 onward and has been patched in 6.18.42, 7.1.6 and 7.2. CVE-2026-68258 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-68258?

CVE-2026-68258 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-2026-68258?

Yes. CVE-2026-68258 has been patched. Fixed versions include 6.18.42, 7.1.6 and 7.2. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-68258 actively exploited?

No. CVE-2026-68258 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.