6.9 Medium
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
49.8%
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.
seclists.org/oss-sec/2014/q2/126
seclists.org/oss-sec/2014/q2/130
secunia.com/advisories/57743
www.securityfocus.com/bid/66780
www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html
www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html
security.gentoo.org/glsa/201612-53