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Unrated severityNVD Advisory· Published Apr 23, 2014· Updated Jun 16, 2026

CVE-2012-5032

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.

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Affected products

5
  • Cisco Systems, Inc./Cisco iOS5 versions
    cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*+ 4 more
    • cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*range: <=15.1\(1\)sy2
    • cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1\(1\)sy:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios:15.1\(1\)sy1:*:*:*:*:*:*:*
    • (no CPE)range: <15.1(1)SY3

Patches

Vulnerability mechanics

References

1

News mentions

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