What’s Vulnerable › Vulnerabilities

CVE-2015-6925

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-01-22 · updated 2026-06-17
• Weakness: CWE-399

Description

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.

Affected products

• wolfSSL: through 3.6.6

References

• http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
• https://github.com/IAIK/wolfSSL-DoS
• https://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
• http://wolfssl.com/wolfSSL/Docs-wolfssl-changelog.html
• https://github.com/IAIK/wolfSSL-DoS
• https://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

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