CVE-2021-31209 Details
A vulnerability was found in Microsoft Exchange Server 2013 CU23/2016 CU16/2016 CU20/2019 CU8/2019 CU9 (Groupware Software). It has been declared as problematic. Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2021-31209
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%).
2.63 Probability of exploitation activity being observed over the next 30 days (84rd percentile)
CVSS score for CVE-2021-31209
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.
6.5 Medium
Products affected by CVE-2021-31209
Exchange Server 2013
Exchange Server 2016
Exchange Server 2019
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
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CVE-2021-31209 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,241 14.82%
FR 1,193 14.25%
RU 1,137 13.58%
DE 803 9.59%
CN 318 3.80%
GB 305 3.64%
HK 226 2.70%
IT 224 2.68%
TW 169 2.02%
AU 154 1.84%

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CVE-2021-31209 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 2,507 70.70%
Technology 542 15.28%
Manufacturing 84 2.37%
Government/Politics 71 2.00%
Business Services 58 1.64%
Transportation 29 0.82%
Finance 28 0.79%
Engineering 27 0.76%
Energy/Resources 24 0.68%
Utilities 24 0.68%

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