CVE-2021-20316 Details
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2021-20316
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
1.1 Probability of exploitation activity being observed over the next 30 days (66th percentile)
CVSS score for CVE-2021-20316
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
6.8 Medium
Products affected by CVE-2021-20316
Samba 4.1.18
Samba 4.1.20
Samba 4.1.21
Samba 4.1.22
Samba 4.1.23
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
More on DVE scores

CVE-2021-20316 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
PK 89,757 45.26%
RU 43,744 22.06%
US 9,351 4.72%
PT 6,193 3.12%
TW 5,908 2.98%
RE 3,339 1.68%
FR 3,213 1.62%
JP 3,003 1.51%
GB 1,706 0.86%
IR 1,621 0.82%

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CVE-2021-20316 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 41,118 84.09%
Technology 6,375 13.04%
Education 269 0.55%
Utilities 236 0.48%
Business Services 159 0.33%
Media/Entertainment 122 0.25%
Government/Politics 103 0.21%
Engineering 102 0.21%
Consumer Goods 71 0.15%
Retail 58 0.12%

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