{"id":"CVE-2012-5032","aliases":["EUVD-2012-4956","GHSA-qpqj-275w-f6mr"],"status":"published","title":"The Flex-VPN load-balancing feature in the ipsec-ikev2 implementation in Cisco IOS before 15.1(1...","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.","severity":{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01282,"percentile":0.70255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2014-04-23T10:00:00Z","modified":"2026-06-16T23:46:04Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/release_notes.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-5032"},{"url":"https://github.com/advisories/GHSA-qpqj-275w-f6mr"}],"sources":{"cve":[{"id":"CVE-2012-5032","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.","status":"published","published":"2014-04-23T10:00:00Z","modified":"2024-08-06T20:50:18.349Z","updated_at":"2026-11-02T14:34:49.246229Z"}],"euvd":[{"id":"EUVD-2012-4956","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.","status":"published","published":"2014-04-23T10:00:00Z","modified":"2024-08-06T20:50:18Z","updated_at":"2026-11-03T01:56:06.406129Z"}],"ghsa":[{"id":"GHSA-qpqj-275w-f6mr","title":"The Flex-VPN load-balancing feature in the ipsec-ikev2 implementation in Cisco IOS before 15.1(1...","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.","status":"published","published":"2022-05-17T04:46:04Z","modified":"2023-01-28T05:02:28Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:43:47.163465Z"}],"nvd":[{"id":"CVE-2012-5032","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.","status":"published","published":"2014-04-23T11:52:59.167Z","modified":"2026-06-16T23:46:04.387Z","cvss":[{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:02:17.748457Z"}]}}