5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
6.7 Medium
AI Score
Confidence
Low
0.011 Low
EPSS
Percentile
84.3%
The AES-XCBC-MAC algorithm in IPsec in FreeBSD 5.3 and 5.4, when used for authentication without other encryption, uses a constant key instead of the one that was assigned by the system administrator, which can allow remote attackers to spoof packets to establish an IPsec session.
CPE | Name | Operator | Version |
---|---|---|---|
freebsd:freebsd | freebsd | eq | 5.3 |
freebsd:freebsd | freebsd | eq | 5.4 |