4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
71.9%
The Public Key Pinning (PKP) implementation in Mozilla Firefox before 33.0
skips pinning checks upon an unspecified issuer-verification error, which
makes it easier for remote attackers to bypass an intended pinning
configuration and spoof a web site via a crafted certificate that leads to
presentation of the Untrusted Connection dialog to the user.