CVE-2026-62840 - Vulnerability Details - OpenCVE

Time-of-check time-of-use (toctou) race condition in Linux Kernel allows an authorized attacker to elevate privileges locally.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft Subscribe	Linux 3p \(third Party\) Distros Subscribe Linux Kernel Mana Network Driver Subscribe

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62840

History

Wed, 14 Oct 2026 00:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 13 Oct 2026 21:00:00 +0000

Type	Values Removed	Values Added
Description		Time-of-check time-of-use (toctou) race condition in Linux Kernel allows an authorized attacker to elevate privileges locally.
Title		Linux Kernel Elevation of Privilege Vulnerability
First Time appeared		Microsoft Microsoft linux 3p \(third Party\) Distros Microsoft linux Kernel Mana Network Driver
Weaknesses		CWE-367
CPEs		cpe:2.3:a:microsoft:linux_3p_\(third_party\)_distros:::::::: cpe:2.3:a:microsoft:linux_kernel_mana_network_driver::::::::
Vendors & Products		Microsoft Microsoft linux 3p \(third Party\) Distros Microsoft linux Kernel Mana Network Driver
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62840
Metrics		cvssV3_1 `{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-10-13T20:37:15.976Z

Updated: 2026-10-13T22:22:28.423Z

Reserved: 2026-07-14T21:10:38.083Z

Link: CVE-2026-62840

Vulnrichment

Updated: 2026-10-13T21:10:35.311Z

NVD

Status : Received

Published: 2026-10-13T21:17:40.033

Modified: 2026-10-13T22:17:38.617

Link: CVE-2026-62840

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-367

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