High severity · published Mar 22, 2023
CVE-2023-0386
Linux Kernel Improper Ownership Management Vulnerability
In wildKEV
7.8
CVSS
7.9%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.9% · higher than 95% of CVEs
Exploited in the wildYes
CISA KEVListed Jun 17, 2025
Federal remediation dueJul 8, 2025
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
Linux kernel 6.2-rc6 · source: vendor, NVD, KEV
DL
Debian Linux · Debian
10.0 · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700s Firmware · Netapp
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
18.04; 20.04; 22.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-0386
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-0386
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
git.kernel.org
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a
security.netapp.com
https://security.netapp.com/advisory/ntap-20230420-0004/
vendor-advisory
https://www.debian.org/security/2023/dsa-5402
mailing-list
https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html
packetstormsecurity.com
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
mailing-list
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability