What is CVE-2026-31783?

CVE-2026-31783 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.18 onward and patched in 6.18.22, 6.19.12 and 7.0. CVE-2026-31783 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-31783?

CVE-2026-31783 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-31783?

Yes, CVE-2026-31783 has been patched. Fixed versions include 6.18.22, 6.19.12 and 7.0. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-31783 actively exploited?

CVE-2026-31783 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-31783

Medium

In the Linux kernel, the following vulnerability has been resolved: spi: amlogic: spifc-a4: unregister ECC engine on probe failure and remove() callback aml_sfc_probe() registers the on-host NAND ECC engine, but teardown was missing from both probe unwind and remove-time cleanup. Add a devm cleanup action after successful registration so nand_ecc_unregister_on_host_hw_engine() runs automatically on probe failures and during device removal.

Package Linux Kernel

Published 2026-05-01

Last modified 2026-05-11

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.18 and later are affected. Fixed in 6.18.22, 6.19.12, 7.0 and their respective stable series.

Affected from

≥ 6.18

Fixed in

✓ 6.18.22 6.18.x ✓ 6.19.12 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-31783 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/5e11741aec3b242a197250b473c37b58f53a16b6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b0dc7e7c56573e7a52080f25f3179a45f3dd7e6f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ee4c064e37d4d0ddc5a7580933dbe79a2c6acafc
Patch

Details

CVE ID CVE-2026-31783

Severity Medium

CVSS score 5.5 / 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-2026-31783?

CVE-2026-31783 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.22, 6.19.12 and 7.0. CVE-2026-31783 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-31783?

CVE-2026-31783 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-31783?

Yes — CVE-2026-31783 has been patched. Fixed versions include 6.18.22, 6.19.12 and 7.0. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-31783 actively exploited?

No — CVE-2026-31783 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.