Linux Kernel up to 6.19.10 nvme-pci privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.19.10. This issue affects some unknown processing of the component nvme-pci. This manipulation causes an unknown weakness. This vulnerability is registered as CVE-2026-31523. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.19.10. It has been declared as critical. Affected by this vulnerability is some unknown processing of the component nvme-pci. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: ensure we're polling a polled queue A user can change the polled queue count at run time. There's a brief window during a reset where a hipri task may try to poll that queue before the block layer has updated the queue maps, which would race with the now interrupt driven queue and may cause double completions.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-31523 since 03/09/2026. The exploitation appears to be difficult. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/26/2026).

The vulnerability scanner Nessus provides a plugin with the ID 316948 (Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1746)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.253, 5.15.203, 6.1.168, 6.6.131, 6.12.80, 6.18.21 or 6.19.11 eliminates this vulnerability. Applying the patch 965e2c943f065122f14282a88d70a8a92e12a4da/ba167d5982e2eb6ff9356d409eca592ce99555da/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d/6f12734c4b619f923a4df0b1a46b8098b187d324/acbc72dd1a09df53cafcf577259f4678be6afd6d/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3/b222680ba55e018426c4535067a008f1d81a5d21/166e31d7dbf6aa44829b98aa446bda5c9580f12a is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (316948) and CERT Bund (WID-SEC-2026-1252). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Siemens SIMATIC S7
  • Proxmox Virtual Environment

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 316948
Nessus Name: Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1746)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.253/5.15.203/6.1.168/6.6.131/6.12.80/6.18.21/6.19.11
Patch: 965e2c943f065122f14282a88d70a8a92e12a4da/ba167d5982e2eb6ff9356d409eca592ce99555da/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d/6f12734c4b619f923a4df0b1a46b8098b187d324/acbc72dd1a09df53cafcf577259f4678be6afd6d/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3/b222680ba55e018426c4535067a008f1d81a5d21/166e31d7dbf6aa44829b98aa446bda5c9580f12a

Timelineinfo

03/09/2026 CVE reserved
04/22/2026 +43 days Advisory disclosed
04/22/2026 +0 days VulDB entry created
07/26/2026 +95 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-31523 (🔒)
GCVE (CVE): GCVE-0-2026-31523
GCVE (VulDB): GCVE-100-358945
CERT Bund: WID-SEC-2026-1252 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/22/2026 17:23
Updated: 07/26/2026 08:16
Changes: 04/22/2026 17:23 (57), 05/28/2026 00:17 (2), 06/18/2026 14:39 (7), 07/26/2026 08:16 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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