CVE-2017-7494
CRITICAL severity · CVSS 9.8 · Code injection · actively exploited (CISA KEV)
9.8CVSS CRITICAL exploited ransomware
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Known use in ransomware campaigns. Added to KEV 2023-03-30. US federal agencies must patch by 2023-04-20.
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)99%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.debian.org/security/2017/dsa-3860Advisory
- http://www.securityfocus.com/bid/98636Advisory
- http://www.securitytracker.com/id/1038552Advisory
- https://access.redhat.com/errata/RHSA-2017:1270Advisory
- https://access.redhat.com/errata/RHSA-2017:1271Advisory
- https://access.redhat.com/errata/RHSA-2017:1272Advisory
- https://access.redhat.com/errata/RHSA-2017:1273Advisory
- https://access.redhat.com/errata/RHSA-2017:1390Advisory