Samba Remote Code Execution Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.8 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

94.25 %

Predictive Probability

Percentile Rank

99.9 th

Documented as more likely to be exploited than 99.9% of known CVEs.

Detection Date

Mar 30, 2023

Remediation Due

Apr 20, 2023

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply updates per vendor instructions.

Asset Context

Vendor Identity

Samba

Affected Product

Samba

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-94

External Intelligence

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

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2017-7494