Permissions, Privileges, and Access Controls in FreeBSD - CVE-2025-15576
Published: February 25, 2026
Vulnerability identifier: #VU123247
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-15576
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: FreeBSD Foundation
Affected software:
FreeBSD
FreeBSD
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to nullfs(4) may allow interprocess communication between two jail processes via a unix domain socket. A local process can break the chroot and gain unauthorized access to files inside another jail process.
How to mitigate CVE-2025-15576
Install updates from vendor's website.