CVE-2026-23988 | BDVDB-2026-311972 Detail

Description#

Rufus is a utility that helps format and create bootable USB flash drives. Versions 4.11 and below contain a race condition (TOCTOU) in src/net.c during the creation, validation, and execution of the Fido PowerShell script. Since Rufus runs with elevated privileges (Administrator) but writes the script to the %TEMP% directory (writeable by standard users) without locking the file, a local attacker can replace the legitimate script with a malicious one between the file write operation and the execution step. This allows arbitrary code execution with Administrator privileges. This issue has been fixed in version 4.12_BETA.

Impact#

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Exploit#

History#

1. Version 12026-01-22Record published in the CVE List.
2. Version 22026-01-23Most recent update recorded in the CVE List.