SEPTEMBER 21, 2026
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Case File

CVE-2016-6309

CRITICAL · CVSS 9.8 EPSS 70.22%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-09-26 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects OpenSSL. Its EPSS score suggests a 70.2% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2016-6309
Severity
CRITICAL
CVSS
9.8
EPSS
70.22%
OpenSSL

Original NVD Description

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.