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CVE-2023-0386

UNKNOWN
Published 2023-03-22T00:00:00.000Z
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Expert Analysis

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CVSS Score

V3.1
7.8
/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.578
probability
of exploitation in the wild

There is a 57.8% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.980
Higher than 98.0% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2023-0386 Linux Kernel Improper Ownership Management Vulnerability These types of vulnerabili…

Cisa.gov 2025-06-17 12:00

Known Exploited Vulnerability

This vulnerability is actively being exploited in the wild

View KEV Details

Remediation Status

Overdue

Due Date

July 8, 2025

Added to KEV

June 17, 2025

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.

Affected Product

Vendor/Project: Linux
Product: Kernel

Ransomware Risk

Known Ransomware Use
KEV Catalog Version: 2025.06.17 Released: June 17, 2025

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-p72q-v88c-rprq

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

Advisory provided by GitHub Security Advisory Database. Published: July 6, 2023, Modified: February 26, 2025

Social Media Intelligence

Real-time discussions and threat intelligence from social platforms

2 posts
Reddit 2 months, 4 weeks ago
crstux

🔥 Top 10 Trending CVEs (19/06/2025) Here’s a quick breakdown of the 10 most interesting vulnerabilities trending today: **1. [CVE-2023-0386](https://nvd.nist.gov/vuln/detail/CVE-2023-0386)** - 📝 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 kernels OverlayFS subsystem …

Reddit 3 months ago
Dark-Marc

Critical Linux Vulnerabilities Grant Root Access, CISA Issues Warning **Two serious vulnerabilities in Linux can be exploited to gain full root access, raising alarms from cybersecurity experts and CISA.** **Key Points:** - Qualys identified CVE-2025-6018 and CVE-2025-6019 vulnerabilities allowing unprivileged attackers to gain root access. - The Udisks component is …

References

Published: 2023-03-22T00:00:00.000Z
Last Modified: 2025-07-28T19:41:41.002Z
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