All vulnerabilities

Servers and applications

CVE-2017-3730

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.

Severity
High 7.5
Published
4 May 2017
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.1.0
  • Version 1.1.0a
  • Version 1.1.0b
  • Version 1.1.0c

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-3730
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-3730