CVE-2017-7494

critical

Description

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.

From the Tenable Blog

Detecting SambaCry CVE-2017-7494

Detecting SambaCry CVE-2017-7494

Published: 2017-05-26

We’ve seen several critical vulnerabilities lately. First there was WannaCry, and then WannaCry 2.0 (EternalRocks), and now do we have WannaCry 3.0? Well, not really.

References

Advisories
More

https://www.exploit-db.com/exploits/42084/

https://www.exploit-db.com/exploits/42060/

https://security.netapp.com/advisory/ntap-20170524-0001/

https://security.gentoo.org/glsa/201805-07

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_us

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us

https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2018-095-01+Security+Notification+Umotion+V1.1.pdf&p_Doc_Ref=SEVD-2018-095-01

https://access.redhat.com/errata/RHSA-2017:1390

https://access.redhat.com/errata/RHSA-2017:1273

https://access.redhat.com/errata/RHSA-2017:1272

https://access.redhat.com/errata/RHSA-2017:1271

https://access.redhat.com/errata/RHSA-2017:1270

http://www.securitytracker.com/id/1038552

http://www.securityfocus.com/bid/98636

http://www.debian.org/security/2017/dsa-3860

https://www.samba.org/samba/security/CVE-2017-7494.html

Details

Source: Mitre, NVD

Published: 2017-05-30

Updated: 2025-04-20

Named Vulnerability: SambacryNamed Vulnerability: EternalRedNamed Vulnerability: EternalBlueKnown Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.943