What is CVE-2026-72018?

CVE-2026-72018 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.10 onward and patched in 6.12.97, 6.18.40, 7.1.5 and others. CVE-2026-72018 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-72018?

CVE-2026-72018 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-2026-72018?

Yes, CVE-2026-72018 has been patched. Fixed versions include 6.12.97, 6.18.40, 7.1.5 and others. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-72018 actively exploited?

CVE-2026-72018 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-72018

High

In the Linux kernel, the following vulnerability has been resolved: dibs: loopback: validate offset and size in move_data() The loopback move_data() performs a memcpy into the registered DMB without checking whether offset + size exceeds the DMB length. Unlike real ISM hardware, which enforces memory region bounds natively, the software loopback has no such protection. A peer-supplied out-of-bounds offset or oversized write would result in an OOB write past the allocated kernel buffer. Add an explicit bounds check before the memcpy to reject such requests with -EINVAL.

Package Linux Kernel

Published 2026-08-15

Last modified 2026-08-17

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

Affected versions

Linux kernel versions 6.10 and later are affected. Fixed in 6.12.97, 6.18.40, 7.1.5, 7.2 and their respective stable series.

Affected from

≥ 6.10

Fixed in

✓ 6.12.97 6.12.x ✓ 6.18.40 6.18.x ✓ 7.1.5 7.1.x ✓ 7.2

References

4 total

Details

CVE ID CVE-2026-72018

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-08-15

Modified 2026-08-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-72018?

CVE-2026-72018 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.10 onward and has been patched in 6.12.97, 6.18.40, 7.1.5 and others. CVE-2026-72018 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-72018?

CVE-2026-72018 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-2026-72018?

Yes. CVE-2026-72018 has been patched. Fixed versions include 6.12.97, 6.18.40, 7.1.5 and others. If you are running Linux kernel 6.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-72018 actively exploited?

No. CVE-2026-72018 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.