What is CVE-2025-68284?

CVE-2025-68284 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10, affecting Linux kernel versions from 5.11 onward and patched in 5.15.197, 6.1.159, 6.6.119 and others. CVE-2025-68284 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-68284?

CVE-2025-68284 has a CVSS score of 9.8 out of 10, rated Critical severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2025-68284?

Yes, CVE-2025-68284 has been patched. Fixed versions include 5.15.197, 6.1.159, 6.6.119 and others. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-68284 actively exploited?

CVE-2025-68284 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-68284

Critical

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds writes in handle_auth_session_key() The len field originates from untrusted network packets. Boundary checks have been added to prevent potential out-of-bounds writes when decrypting the connection secret or processing service tickets. [ idryomov: changelog ]

Package Linux Kernel

Published 2025-12-16

Last modified 2026-07-30

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

9.8

out of 10

Critical

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.11 and later are affected. Fixed in 5.15.197, 6.1.159, 6.6.119, 6.12.61, 6.17.11, 6.18 and their respective stable series.

Affected from

≥ 5.11

Fixed in

✓ 5.15.197 5.15.x ✓ 6.1.159 6.1.x ✓ 6.6.119 6.6.x ✓ 6.12.61 6.12.x ✓ 6.17.11 6.17.x ✓ 6.18

References

6 total

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2025-68284

Severity Critical

CVSS score 9.8 / 10

CVSS version 3.1

Published 2025-12-16

Modified 2026-07-30

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-68284?

CVE-2025-68284 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10 . It affects Linux kernel versions from 5.11 onward and has been patched in 5.15.197, 6.1.159, 6.6.119 and others. CVE-2025-68284 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-68284?

CVE-2025-68284 has a CVSS score of 9.8 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2025-68284?

Yes. CVE-2025-68284 has been patched. Fixed versions include 5.15.197, 6.1.159, 6.6.119 and others. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-68284 actively exploited?

No. CVE-2025-68284 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.