What is CVE-2026-46327?

CVE-2026-46327 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.12.34 onward and patched in 6.12.75, 6.18.14, 6.19.4 and others. CVE-2026-46327 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46327?

CVE-2026-46327 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-2026-46327?

Yes, CVE-2026-46327 has been patched. Fixed versions include 6.12.75, 6.18.14, 6.19.4 and others. If you are running Linux kernel 6.12.34 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46327 actively exploited?

CVE-2026-46327 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46327

High

In the Linux kernel, the following vulnerability has been resolved: dm: fix unlocked test for dm_suspended_md The function dm_blk_report_zones tests if the device is suspended with the "dm_suspended_md" call. However, this function is called without holding any locks, so the device may be suspended just after it. Move the call to dm_suspended_md after dm_get_live_table, so that the device can't be suspended after the suspended state was tested.

Package Linux Kernel

Published 2026-06-09

Last modified 2026-07-23

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 6.12.34, 6.15.3, 6.16 and later are affected. Fixed in 6.12.75, 6.18.14, 6.19.4, 7.0 and their respective stable series.

Affected from

≥ 6.12.34 ≥ 6.15.3 ≥ 6.16

Fixed in

✓ 6.12.75 6.12.x ✓ 6.18.14 6.18.x ✓ 6.19.4 6.19.x ✓ 7.0

References

4 total

Kernel Git
https://git.kernel.org/stable/c/175ac0a6115400278d3900f5a04a58b17b3f6cd0

Patch
Kernel Git
https://git.kernel.org/stable/c/24c405fdbe215c45e57bba672cc42859038491ee

Patch
Kernel Git
https://git.kernel.org/stable/c/7a3385e97af2b6f485fef11e82d8c29adee4be93

Patch
Kernel Git
https://git.kernel.org/stable/c/d809a36692ee1394cac85ce6ba7cf8ea58da5812

Patch

Details

CVE ID CVE-2026-46327

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-06-09

Modified 2026-07-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46327?

CVE-2026-46327 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.12.34 onward and has been patched in 6.12.75, 6.18.14, 6.19.4 and others. CVE-2026-46327 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46327?

CVE-2026-46327 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-2026-46327?

Yes. CVE-2026-46327 has been patched. Fixed versions include 6.12.75, 6.18.14, 6.19.4 and others. If you are running Linux kernel 6.12.34 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46327 actively exploited?

No. CVE-2026-46327 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.