CVE-2017-7494

samba

Published 30 May 2017 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 30 Mar 2023, with a remediation deadline of 20 Apr 2023 for US federal agencies. It has been used in ransomware campaigns.

Required action: Apply updates per vendor instructions.

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.

References

www.debian.org/security/2017/dsa-3860 · Third Party Advisory
www.securityfocus.com/bid/98636 · Third Party Advisory, VDB Entry
www.securitytracker.com/id/1038552 · Third Party Advisory, VDB Entry
access.redhat.com/errata/RHSA-2017:1270 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1271 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1272 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1273 · Third Party Advisory
access.redhat.com/errata/RHSA-2017:1390 · Third Party Advisory
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 · Third Party Advisory
h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us · Third Party Advisory
h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_us · Third Party Advisory
security.gentoo.org/glsa/201805-07 · Third Party Advisory
security.netapp.com/advisory/ntap-20170524-0001/ · Third Party Advisory
www.exploit-db.com/exploits/42060/ · Third Party Advisory, VDB Entry
www.exploit-db.com/exploits/42084/ · Third Party Advisory, VDB Entry
www.samba.org/samba/security/CVE-2017-7494.html · Patch, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7494 · US Government Resource