Vulnerability in Linux Linux_kernel
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 kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another…
EPSS: 0.079 (94.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Mailing List, Broken Link, Vendor Advisory)
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2023-0386?
- CVE-2023-0386 is a high-severity vulnerability in Linux Linux_kernel, classified under CWE-282. CVSS score: 7.8/10. Published 2023-03-22.
- How severe is CVE-2023-0386?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-0386 known to be exploited?
- Yes. CVE-2023-0386 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-06-17), indicating it is being actively exploited. 83 public proof-of-concept repositories are indexed.