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CVE-2017-7494

Critical CVSS 9.8 Known exploited

Published 2017-05-30 · last changed 2026-06-17 · added to CISA KEV 2023-03-30

This one is being exploited in the wild.

CISA added CVE-2017-7494 to the Known Exploited Vulnerabilities catalog on 2023-03-30. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2017-7494, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.

Sources

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H