VULNERABILITY INTELLIGENCE
CVE-2016-3739
CVSS score5.3 MEDIUM
EPSS probability6.93%
CISA KEVNot currently listed
Published2016-05-20
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Description
The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection to a URL that uses a numerical IP address, allow remote attackers to spoof servers via an arbitrary valid certificate.
Weakness classification
- CWE-20: Improper Input Validation