Description
The Flex-VPN load-balancing feature in the ipsec-ikev2 implementation in Cisco IOS before 15.1(1)SY3 does not require authentication, which allows remote attackers to trigger the forwarding of VPN traffic to an attacker-controlled destination, or the discarding of this traffic, by arranging for an arbitrary device to become a cluster member, aka Bug ID CSCub93641.
Metrics
CVSS 2.0 6.4/10
AV:N/AC:L/Au:N/C:N/I:P/A:PWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Apr 23, 2014
- Last modified
- Jun 16, 2026
- NVD status
- Modified