CVE-2017-7494
Samba Remote Code Execution Vulnerability
- Published
- May 30, 2017
- Updated
- Oct 21, 2025
- Assigning CNA
- redhat
- Evidence observed
- May 24, 2017
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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
21- exploit-CVE-2017-7494Exploit
SambaCry exploit (CVE-2017-7494)
- noSAMBAnoCRY-CVE-2017-7494Exploit
CVE-2017-7494 python exploit
According to researchers with Rapid7, over 110,000 devices appear on internet, which run stable Samba versions, while 92,500 seem to run unstable Samba versions, for which there is no fix. The newest Samba models, including the models 4.6.x before 4.6.4, 4.5.x before 4.5.10 and 3.5.0 before 4.4.13, was impacted by this error. May 24, 2017, Samba released version 4.6.4, which fixes a serious remote code execution vulnerability, vulnerability number CVE-2017-7494, which affected Samba 3.5.0 onwards. Vulnerability number: CVE-2017-7494 Severity Rating: High Affected software: • Samba Version < 4.6.4 • Samba Version < 4.5.10 • Samba Version < 4.4.14 Unaffected software: • Samba Version = 4.6.4 • Samba Version = 4.5.10 • Samba Version = 4.4.14
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