What is CVE-2025-68283?

CVE-2025-68283 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, affecting Linux kernel versions from 2.6.34 onward and patched in 6.1.159, 6.6.119, 6.12.61 and others. CVE-2025-68283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-68283?

CVE-2025-68283 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-68283?

Yes, CVE-2025-68283 has been patched. Fixed versions include 6.1.159, 6.6.119, 6.12.61 and others. If you are running Linux kernel 2.6.34 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-68283 actively exploited?

CVE-2025-68283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-68283

High

In the Linux kernel, the following vulnerability has been resolved: libceph: replace BUG_ON with bounds check for map->max_osd OSD indexes come from untrusted network packets. Boundary checks are added to validate these against map->max_osd. [ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic edits ]

Package Linux Kernel

Published 2025-12-16

Last modified 2026-07-30

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 2.6.34 and later are affected. Fixed in 6.1.159, 6.6.119, 6.12.61, 6.17.11, 6.18 and their respective stable series.

Affected from

≥ 2.6.34

Fixed in

✓ 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

5 total

Details

CVE ID CVE-2025-68283

Severity High

CVSS score 7.5 / 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-2025-68283?

CVE-2025-68283 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . It affects Linux kernel versions from 2.6.34 onward and has been patched in 6.1.159, 6.6.119, 6.12.61 and others. CVE-2025-68283 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-68283?

CVE-2025-68283 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-68283?

Yes. CVE-2025-68283 has been patched. Fixed versions include 6.1.159, 6.6.119, 6.12.61 and others. If you are running Linux kernel 2.6.34 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-68283 actively exploited?

No. CVE-2025-68283 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.