All vulnerabilities

Servers and applications

CVE-2016-6309

statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session.

Severity
Critical 9.8
Published
26 Sept 2016
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 1.1.0a

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-6309
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-6309