What is CVE-2026-72471?

CVE-2026-72471 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 7.0 onward and patched in 7.1.5 and 7.2. CVE-2026-72471 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-72471?

CVE-2026-72471 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.

Is there a patch available for CVE-2026-72471?

Yes, CVE-2026-72471 has been patched. Fixed versions include 7.1.5 and 7.2. If you are running Linux kernel 7.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-72471 actively exploited?

CVE-2026-72471 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-72471

High

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent potential lcn remains uninitialized The target VCN being sought was not found within runs[0], causing run_lookup() to return false. This causes run_lookup_entry() to return false, which in turn results in a len value of 0, and the new parameter passed to attr_data_get_block() is NULL. Collectively, these factors ultimately cause attr_data_get_block_locked() to exit prematurely without initializing lcn, thereby triggering [1]. To prevent [1], the clen check within ni_seek_data_or_hole() has been moved to occur before the lcn check. [1] BUG: KMSAN: uninit-value in ni_seek_data_or_hole+0x24f/0x5f0 fs/ntfs3/frecord.c:2862 ni_seek_data_or_hole+0x24f/0x5f0 fs/ntfs3/frecord.c:2862 ntfs_llseek+0x22a/0x4a0 fs/ntfs3/file.c:1530 vfs_llseek fs/read_write.c:391 [inline]

Package Linux Kernel

Published 2026-08-15

Last modified 2026-08-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Vector string

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

Affected versions

Linux kernel versions 7.0 and later are affected. Fixed in 7.1.5, 7.2 and their respective stable series.

Affected from

≥ 7.0

Fixed in

✓ 7.1.5 7.1.x ✓ 7.2

References

2 total

Details

CVE ID CVE-2026-72471

Severity High

CVSS score 7.1 / 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-2026-72471?

CVE-2026-72471 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 7.0 onward and has been patched in 7.1.5 and 7.2. CVE-2026-72471 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-72471?

CVE-2026-72471 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
Is there a patch available for CVE-2026-72471?

Yes. CVE-2026-72471 has been patched. Fixed versions include 7.1.5 and 7.2. If you are running Linux kernel 7.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-72471 actively exploited?

No. CVE-2026-72471 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.