What’s Vulnerable › Vulnerabilities

CVE-2016-3995

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-02-13 · updated 2026-06-17
• Weakness: CWE-200

Description

The timing attack protection in Rijndael::Enc::ProcessAndXorBlock and Rijndael::Dec::ProcessAndXorBlock in Crypto++ (aka cryptopp) before 5.6.4 may be optimized out by the compiler, which allows attackers to conduct timing attacks.

Affected products

• Cryptopp Crypto++: through 5.6.3

References

• http://www.openwall.com/lists/oss-security/2016/04/11/2
• http://www.securityfocus.com/bid/85975
• https://github.com/weidai11/cryptopp/issues/146
• http://www.openwall.com/lists/oss-security/2016/04/11/2
• http://www.securityfocus.com/bid/85975
• https://github.com/weidai11/cryptopp/issues/146

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