External Control of File Name or Path Affecting smb4k package, versions [,4.0.5)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published12 Jan 2026
- disclosed8 Jan 2026
- creditUnknown
Introduced: 8 Jan 2026
CVE-2025-66003 (opens in a new tab)How to fix?
Upgrade smb4k to version 4.0.5 or higher.
Overview
Affected versions of this package are vulnerable to External Control of File Name or Path via the Smb4KMountHelper if they can access and control the contents of a Samba share. An attacker can gain root privileges by controlling the contents of a Samba share and exploiting the way file names or paths are handled.