What is the CVSS score of CVE-2023-0386?

CVE-2023-0386 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 7.9%.

Is there a public PoC exploit available for CVE-2023-0386?

Yes, a public proof-of-concept exploit is available for CVE-2023-0386. Prioritise patching immediately. EPSS: 7.9%.

Is there a patch available for CVE-2023-0386?

Yes, a patch is available for CVE-2023-0386. Update the affected software to the latest version immediately.

Debian Linux CVE-2023-0386

HIGH

Improper Ownership Management (CWE-282)

2023-03-22 secalert@redhat.com

Linux Authentication Bypass Debian Linux H300s Firmware H500s Firmware H700s Firmware H410s Firmware H410c Firmware Ubuntu Linux Linux Kernel

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Mar 22, 2023 - 21:15 nvd

HIGH 7.8

DescriptionNVD

A flaw was found in the Linux kernel, 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.

AnalysisAI

A flaw was found in the Linux kernel, 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. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-282. A flaw was found in the Linux kernel, 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. Affected products include: Debian Debian Linux, Netapp H300S Firmware, Netapp H500S Firmware, Netapp H700S Firmware, Netapp H410S Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.