HIGHCVSS 7.8Actively exploited · CISA KEV since 2025-06-17Vulnerability

CVE-2023-0386

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.

Properties

Euvd product
Kernel
Vulnerability name
Linux Kernel Improper Ownership Management Vulnerability
First seen
2025-10-21T23:15:22+00:00
Cvss score
7.8
Epss score
0.0788
Last seen
2026-10-19T12:00:27+00:00
Due date
2025-07-08
Euvd assigner
redhat
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2025-06-17T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2025-06-17
Score
7.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Linux
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
7.8

Related Entities (24)

AFFECTS_PRODUCT (20)

→[Product]cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
→[Product]cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
→[Product]cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
→[Product]cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*
→[Product]cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
→[Product]cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
→[Product]cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
→[Product]cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
→[Product]cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Linux Kernel Improper Ownership Management Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Ownership Management

INVOLVES (1)

←[Signal]kev_added · 2025-06-17

MENTIONED_IN (1)

→[Campaign]EtherHiding Exposed: Inside a Blockchain-powered Malware Campaign Hiding in Plain Sight

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CVE-2023-0386 (CVSS 7.8) — Ninja Signal Threat Intelligence | Ninja Signal