Vulnerability · CVE-2017-7494
Samba Remote Code Execution Vulnerability
Published May 30, 2017 · catalog updated Jun 16, 2026 · Samba Samba
Patch now
CVE-2017-7494 is in the CISA known-exploited catalog, due Apr 20, 2023. Confirm Samba Samba against the vendor advisory and apply that fix. The CVSS score does not change the priority.
- Severity
- Critical9.8
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 99.45%
- Remediation
- Remediation guidance
- Affected products
- cpe debian/debian linux · cpe samba/samba · vendor Samba Samba
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe debian/debian linux8.0
- cpe samba/sambaversion unspecified
- vendor Samba Sambaversion unspecified
How to fix CVE-2017-7494
Recommended remediation
Apply updates per vendor instructions. CISA due date Apr 20, 2023.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2017-7494 is in the CISA known-exploited catalog, due Apr 20, 2023. Confirm Samba Samba against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Compare what you have installed with debian/debian linux 8.0. Apply updates per vendor instructions.
What should an analyst verify?
CWE-94: Code Injection. EPSS 99.45%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 30, 2017 · Catalog
Detected
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.
Mar 30, 2023 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Apr 20, 2023 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
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
- CISA KEVConfirmed exploitationCVE-2017-7494
Samba contains a 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.
cisa.gov - CVE.orgVulnerability recordCVE-2017-7494
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2017-7494
30-day exploitation probability 99.4%
first.org - Exploit DatabasePublic exploit reference42060
Public archive entry. The exploit body is not stored here.
exploit-db.com - Exploit DatabasePublic exploit reference42084
Public archive entry. The exploit body is not stored here.
exploit-db.com - Metasploit ModulesPublic exploit moduleexploit_linux/samba/is_known_pipename
Public module reference (excellent). Module source is not copied into this catalog.
rapid7.com - NIST NVDVulnerability recordCVE-2017-7494
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.
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-2017-7494
Samba contains a 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.
vulncheck.com
References
- Third Party Advisory · debian.org
- Third Party Advisory · securityfocus.com
- Third Party Advisory · securitytracker.com
- Third Party Advisory · access.redhat.com
- Third Party Advisory · access.redhat.com
- Third Party Advisory · access.redhat.com
- VulnCheck exploitation evidence · bartblaze.blogspot.com
- VulnCheck exploitation evidence · cybersecurityworks.com
- VulnCheck exploitation evidence · digital.nhs.uk
- VulnCheck exploitation evidence · info.securin.io
- CISA note · nvd.nist.gov
- VulnCheck exploitation evidence · bleepingcomputer.com
- VulnCheck exploitation evidence · ivanti.com
- CISA note · samba.org
Freshness
Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.