What is CVE-2026-31595?

CVE-2026-31595 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15.153 onward and patched in 6.1.175, 6.6.136, 6.12.83 and others. CVE-2026-31595 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-31595?

CVE-2026-31595 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-2026-31595?

Yes, CVE-2026-31595 has been patched. Fixed versions include 6.1.175, 6.6.136, 6.12.83 and others. If you are running Linux kernel 5.15.153 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-31595 actively exploited?

CVE-2026-31595 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-31595

Medium

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup Disable the delayed work before clearing BAR mappings and doorbells to avoid running the handler after resources have been torn down. Unable to handle kernel paging request at virtual address ffff800083f46004 [...] Internal error: Oops: 0000000096000007 [#1] SMP [...] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20

Package Linux Kernel

Published 2026-04-24

Last modified 2026-06-01

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 5.15.153, 6.0 and later are affected. Fixed in 6.1.175, 6.6.136, 6.12.83, 6.18.24, 6.19.14, 7.0.1, 7.1-rc1 and their respective stable series.

Affected from

≥ 5.15.153 ≥ 6.0

Fixed in

✓ 6.1.175 6.1.x ✓ 6.6.136 6.6.x ✓ 6.12.83 6.12.x ✓ 6.18.24 6.18.x ✓ 6.19.14 6.19.x ✓ 7.0.1 7.0.x ✓ 7.1-rc1

References

The following references provide additional information about CVE-2026-31595 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/5999067140c67530a6cb6f41a8471596e60452cb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2026-31595

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-04-24

Modified 2026-06-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-31595?

CVE-2026-31595 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15.153 onward and has been patched in 6.1.175, 6.6.136, 6.12.83 and others. CVE-2026-31595 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-31595?

CVE-2026-31595 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-2026-31595?

Yes — CVE-2026-31595 has been patched. Fixed versions include 6.1.175, 6.6.136, 6.12.83 and others. If you are running Linux kernel 5.15.153 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-31595 actively exploited?

No — CVE-2026-31595 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.