CVSS v3
7.8
HIGH
EPSS Score
61.6%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
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.
Yes. CVE-2023-0386 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 7/8/2025.
CVE-2023-0386 has a CVSS v3 base score of 7.8 (HIGH severity).
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Ranked by exploit probability (EPSS).