CVE Watch—

CVE-2023-0386

Linux Kernel Improper Ownership Management Vulnerability

CVSS

—

No CVSS

EPSS

7.9%

p94

KEV

YES

Jun 17, 2025

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

7.9%EPSS · 30 days7.9%

2026-06-302026-07-16

KEV catalog record

Product

Linux / Kernel

Vulnerability

Linux Kernel Improper Ownership Management Vulnerability

Added to KEV

Jun 17, 2025

Remediate by

Jul 8, 2025

Known ransomware use

Summary description

Linux Kernel contains an improper ownership management vulnerability, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a ; https://access.redhat.com/security/cve/cve-2023-0386 ; https://security.netapp.com/advisory/ntap-20230420-0004/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-0386

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