Reference page — cumulative record through Tuesday, October 6, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2023-0386
n/a Kernel — Linux Kernel
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0788 94.5 YES
AFFECTED
Product Versions Fixed
Kernel Linux kernel 6.2-rc6 – —
TIMELINE
Jan 18 Reserved by redhat
Mar 22 Published (CNA: redhat)
Jun 17 Added to CISA KEV, remediation due 2025-07-08
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| January 18, 2023 | Reserved | Reserved by redhat |
| March 22, 2023 | Published | Published (CNA: redhat) |
| June 17, 2025 | KEV ADDED | Added to CISA KEV, remediation due 2025-07-08 |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| n/a | Kernel | — | Linux kernel 6.2-rc6 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-0386 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Tuesday, October 6, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.