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Case File

CVE-2017-3730

HIGH · CVSS 7.5 EPSS 55.29% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-05-04 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Exchange, OpenSSL. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 55.3% probability of exploitation in the next 30 days. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links
External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2017-3730
Severity
HIGH
CVSS
7.5
EPSS
55.29%
Exchange OpenSSL

Original NVD Description

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

Related CVEs

Other vulnerabilities affecting the same vendor(s)