Cisco IOS IPv6 Packet ACL Restriction Bypass

medium Nessus Plugin ID 76346
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The remote device is missing a vendor-supplied security patch.


According to its self-reported IOS version, the remote device is affected by a security bypass vulnerability.

The flaw is due to the handling of specially crafted IPv6 packets in an unspecified scenario. A remote attacker, with a specially crafted request, could bypass the ACL restrictions on the interface.


Upgrade to one of the non-vulnerable versions listed in the bug details for CSCty73682.

See Also

Plugin Details

Severity: Medium

ID: 76346

File Name: cisco_ios_CSCty73682.nasl

Version: 1.3

Type: local

Family: CISCO

Published: 7/2/2014

Updated: 11/15/2018

Dependencies: cisco_ios_version.nasl

Risk Information


Risk Factor: Low

Score: 2.7


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2013

Vulnerability Publication Date: 5/8/2013

Reference Information

CVE: CVE-2012-3946

BID: 68261