Is CVE-2015-3216 in the CISA KEV catalog?

No. CVE-2015-3216 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3216?

CVE-2015-3216 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-3216?

CVE-2015-3216 has an EPSS score of 4.30% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2015-3216?

No published fix for CVE-2015-3216 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2015-3216

MEDIUMEPSS 90th pctl

4.3

CVSS v2

NVD

Description

Race condition in a certain Red Hat patch to the PRNG lock implementation in the ssleay_rand_bytes function in OpenSSL, as distributed in openssl-1.0.1e-25.el7 in Red Hat Enterprise Linux (RHEL) 7 and other products, allows remote attackers to cause a denial of service (application crash) by establishing many TLS sessions to a multithreaded server, leading to use of a negative value for a certain length field.

CWE-189 CWE-362Race Condition

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.30%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Other references10

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.