EUVD-2026-25004CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
The mknod utility in uutils coreutils fails to handle security labels atomically by creating device nodes before setting the SELinux context. If labeling fails, the utility attempts cleanup using std::fs::remove_dir, which cannot remove device nodes or FIFOs. This leaves mislabeled nodes behind with incorrect default contexts, potentially allowing unauthorized access to device nodes that should have been restricted by mandatory access controls.
AnalysisAI
The mknod utility in uutils coreutils creates device nodes before atomically applying SELinux security labels, and fails to properly clean up mislabeled nodes if labeling operations fail. This leaves device nodes with incorrect default SELinux contexts, potentially bypassing mandatory access control restrictions on systems where SELinux is enforcing. …
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External POC / Exploit Code
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