CVE-2017-7494NVD

Vulnerability 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.

Severity Level

CRITICAL(9.8)

Published Date

May 30, 2017

Last Modified

Apr 21, 2026

Exploitation Status

ACTIVE

EPSS Score (30-Day)

94.18%Probability

Root Weakness (CWE)

CWE-94: Code Injection ↗

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.

CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Samba Samba >= 3.5.0 and < 4.4.0
Samba Samba >= 4.4.0 and < 4.4.14
Samba Samba >= 4.5.0 and < 4.5.10
Samba Samba >= 4.6.0 and < 4.6.4
Debian Debian Linux

Patched Versions

Samba Samba 4.4.0
Samba Samba 4.4.14
Samba Samba 4.5.10
Samba Samba 4.6.4

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