What is CVE-2026-31768?

CVE-2026-31768 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 4.9 onward and patched in 6.1.168, 6.6.134, 6.12.81 and others. CVE-2026-31768 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-31768?

CVE-2026-31768 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-2026-31768?

Yes, CVE-2026-31768 has been patched. Fixed versions include 6.1.168, 6.6.134, 6.12.81 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-31768 actively exploited?

CVE-2026-31768 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-31768

High

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() Add a DMA-safe buffer and use it for spi_read() instead of a stack memory. All SPI buffers must be DMA-safe. Since we only need up to 3 bytes, we just use a u8[] instead of __be16 and __be32 and change the conversion functions appropriately.

Package Linux Kernel

Published 2026-05-01

Last modified 2026-05-11

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 4.9 and later are affected. Fixed in 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0 and their respective stable series.

Affected from

≥ 4.9

Fixed in

✓ 6.1.168 6.1.x ✓ 6.6.134 6.6.x ✓ 6.12.81 6.12.x ✓ 6.18.22 6.18.x ✓ 6.19.12 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-31768 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/014c6d27878d3883f7bb065610768fd021de1a96
Patch
Kernel patch commit
https://git.kernel.org/stable/c/67b3a91bdc48220bfb67155ab528121b9c822782
Patch
Kernel patch commit
https://git.kernel.org/stable/c/768461517a28d80fe81ea4d5d03a90cd184ea6ad
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2026-31768

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-05-01

Modified 2026-05-11

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-31768?

CVE-2026-31768 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 4.9 onward and has been patched in 6.1.168, 6.6.134, 6.12.81 and others. CVE-2026-31768 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-31768?

CVE-2026-31768 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-2026-31768?

Yes — CVE-2026-31768 has been patched. Fixed versions include 6.1.168, 6.6.134, 6.12.81 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-31768 actively exploited?

No — CVE-2026-31768 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.