What is CVE-2015-6925?

CVE-2015-6925 is a high-severity vulnerability in Wolfssl, classified under CWE-399. CVSS score: 7.5/10. Published 2016-01-22.

How severe is CVE-2015-6925?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2015-6925 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Wolfssl

CVE-2015-6925

wolfSSL (formerly CyaSSL) before 3.6.8 allows remote attackers to cause a denial of service (resource consumption or traffic amplification) via a crafted DTLS cookie in a ClientHello message.

Published 2016-01-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Wolfssl

Weakness classification (CWE)

CWE-399

Public proof-of-concept exploits

References

wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
github.com/IAIK/wolfSSL-DoS (Exploit)
wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found,_… (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2015-6925?: CVE-2015-6925 is a high-severity vulnerability in Wolfssl, classified under CWE-399. CVSS score: 7.5/10. Published 2016-01-22.
How severe is CVE-2015-6925?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2015-6925 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.