Is It On KEV?

Linux Kernel

YES - ON THE CISA KEV LIST
CVE-2023-0386

Linux Kernel Improper Ownership Management Vulnerability

CISA catalog due date2025-07-08
overdue since 2025-07-08
EPSS exploit probability (next 30 days)7.9% · 95percentile
From CVE publication to KEV listing818 days (2023-03-22 → 2025-06-17)
Remediation window (KEV listing to due date)21 days
Days on the KEV list512 days
Date added to KEV2025-06-17
Known ransomware campaign useUnknown
VendorLinux
ProductKernel
Weaknesses (CWE)CWE-282

Linux: 32 entries (1.8% of all KEV entries are from this vendor); 9 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

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.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a ; https://access.redhat.com/security/cve/cve-2023-0386 ; https://security.netapp.com/advisory/ntap-20230420-0004/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-0386

References

Other KEV entries for this vendor: Linux

Linux - Vendors with KEV entries

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