CVE-2026-28387 Details
A vulnerability was found in OpenSSL up to 3.6.1 (Network Encryption Software). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component DANE Client Code. Upgrading to version 1.1.1zg, 3.0.20, 3.3.7, 3.4.5, 3.5.6 or 3.6.2 eliminates this vulnerability.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-28387
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%).
0.76 Probability of exploitation activity being observed over the next 30 days (51st percentile)
CVSS score for CVE-2026-28387
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.
8.1 High
Products affected by CVE-2026-28387
OpenSSL 1.1.1
OpenSSL 1.1.1a
OpenSSL 1.1.1b
OpenSSL 1.1.1c
OpenSSL 1.1.1d
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.
Low
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CVE-2026-28387 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 74,392 29.92%
JP 21,644 8.71%
DE 18,109 7.28%
NL 13,249 5.33%
CA 10,004 4.02%
IN 9,847 3.96%
FR 8,945 3.60%
GB 7,815 3.14%
CN 7,272 2.92%
KR 6,896 2.77%

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CVE-2026-28387 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
Technology 124,040 74.14%
Telecommunications 27,707 16.56%
Education 8,218 4.91%
Government/Politics 2,168 1.30%
Business Services 835 0.50%
Finance 542 0.32%
Manufacturing 533 0.32%
Healthcare/Wellness 399 0.24%
Utilities 393 0.23%
Transportation 387 0.23%

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