CVE-2017-7494 (GCVE-0-2017-7494)

Vulnerability from cvelistv5 – Published: 2017-05-30 18:00 – Updated: 2025-10-21 23:55
VLAI CISA Previdian
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
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-07 13:29 UTC
CWE
  • remote code execution
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
Samba samba Affected: since 3.5.0
Create a notification for this product.
Date Public
2017-05-24 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1fbf7267-be1e-40f9-9c37-422efecb4e86

Vulnerability ID: CVE-2017-7494

Status: Confirmed

Status Updated: 2023-03-30 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2023-03-30
Asserted: 2023-03-30
Scope
Notes: Samba Remote Code Execution Vulnerability | Affected: Samba / Samba | Description: 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. | Required action: Apply updates per vendor instructions. | Due date: 2023-04-20 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://www.samba.org/samba/security/CVE-2017-7494.html; https://nvd.nist.gov/vuln/detail/CVE-2017-7494
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-94
Feed CISA Known Exploited Vulnerabilities Catalog
Product Samba
Due Date 2023-04-20
Date Added 2023-03-30
Vendorproject Samba
Vulnerabilityname Samba Remote Code Execution Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: cca714ad-7bfc-4463-90fe-19f0af1d2455

Vulnerability ID: CVE-2017-7494

Status: Confirmed

Status Updated: 2023-03-30 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2023-03-30
Asserted: 2023-03-30
Scope
Notes: 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... | Affected: Samba / samba | CVSS: 9.8 (CRITICAL) | EPSS: 0.99448 | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title 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...
Cve Id CVE-2017-7494
Vendor Samba
Ghsa Id None
Product samba
Added Date 2023-03-30T00:00:00.000Z
Cvss Score 9.8
Epss Score 0.99448
Previous Ids
Cvss Severity CRITICAL
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99942
Used In Malware yes
Vulnerability Id CVE-2017-7494
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:11 CEST | Updated: 2026-10-02 09:11 CEST
Show details on NVD website
To clipboard 

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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.