CVE-2015-6925

HIGHNVD 7.57.5—

7.5

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.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 76.0%
KEV: Not listed

Published

January 22, 2016

Last Modified

May 6, 2026

References (6)

cve@mitrehttp://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
cve@mitrehttps://github.com/IAIK/wolfSSL-DoS
cve@mitrehttps://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html
af854a3a-2127-422b-91ae-364da2661108http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/IAIK/wolfSSL-DoS
af854a3a-2127-422b-91ae-364da2661108https://wolfssl.com/wolfSSL/Blog/Entries/2015/9/17_Two_Vulnerabilities_Recently_Found%2C_An_Attack_on_RSA_using_CRT_and_DoS_Vulnerability_With_DTLS.html

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 23:59 UTCOSV refresh
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-6925?

CVE-2015-6925 is a high vulnerability published on January 22, 2016. 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.

When was CVE-2015-6925 disclosed?

CVE-2015-6925 was first published in the National Vulnerability Database on January 22, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-6925 actively exploited?

CVE-2015-6925 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-6925?

CVE-2015-6925 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2015-6925?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-6925, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-6925

📅 Published

🔄 Last Modified

🔗 References (6)