Vulnerabilities

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

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.

  1. 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.

  2. Mar 30, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 20, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. 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

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.