5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
6.6 Medium
AI Score
Confidence
Low
0.221 Low
EPSS
Percentile
96.5%
isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection.
CPE | Name | Operator | Version |
---|---|---|---|
openbsd:openbsd | openbsd | eq | 3.8 |
openbsd:openbsd | openbsd | eq | 3.9 |