VULNERABILITY INTELLIGENCE
CVE-2013-1740
CVSS score5.8 MEDIUM
EPSS probability1.66%
CISA KEVNot currently listed
Published2014-01-18
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N
Description
The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services (NSS) before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509 certificate during certain handshake traffic.