6.6 Medium
AI Score
Confidence
Low
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
39.2%
WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject’s Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
CPE | Name | Operator | Version |
---|---|---|---|
winscp:winscp | winscp | eq | 5.5 |
winscp:winscp | winscp | eq | 5.5.1 |
winscp:winscp | winscp | le | 5.5.2 |