What’s Vulnerable › Vulnerabilities

CVE-2016-6882

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-03-03 · updated 2026-06-17
• Weakness: CWE-200

Description

MatrixSSL before 3.8.7, when the DHE_RSA based cipher suite is supported, makes it easier for remote attackers to obtain RSA private key information by conducting a Lenstra side-channel attack.

Affected products

• Inside Secure MatrixSSL: through 3.8.6

References

• http://www.openwall.com/lists/oss-security/2016/08/19/7
• http://www.securityfocus.com/bid/91488
• https://access.redhat.com/blogs/766093/posts/1976703
• https://github.com/matrixssl/matrixssl/blob/master/CHANGES.md#validation-of-rsa-signature-creation
• https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf
• http://www.openwall.com/lists/oss-security/2016/08/19/7
• http://www.securityfocus.com/bid/91488
• https://access.redhat.com/blogs/766093/posts/1976703
• https://github.com/matrixssl/matrixssl/blob/master/CHANGES.md#validation-of-rsa-signature-creation
• https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf

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