CVE-2017-7494Samba Remote Code Execution Vulnerability

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.

9.8 CRITICALEPSS 99.44%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 01:24 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: May 30, 2017
Assigner: redhat

Affected

samba (Samba)

Versions: since 3.5.0

Exploitation

Public exploit: Yes · 2 references
CISA KEV: Listed · Mar 30, 2023
KEV due date: Apr 20, 2023
Ransomware use: Known
SSVC: Exploitation active · Automatable yes · Impact total

EPSS · FIRST, scored Nov 7

99.44%chance of exploitation in 30 days

Higher than 99.94% of CVEs

CVSS 3.1 · NVD

9.8Critical

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

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

10.0High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Network
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0	HIGH	2.0NVD	AV:N/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Apr 20, 2023

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Details

CVE ID: CVE-2017-7494
Status: Analyzed
Assigner (CNA): redhat
Published: May 30, 2017
Last modified: 2026-06-17 01:24 UTC
Weaknesses: CWE-94

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 14:06 UTC.