CVE-2026-35364 — uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition
A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path befo…
Published: 2026-04-22 · CVSS: 6.3 · CVSS 3.1
A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7