CVE-2016-1409
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS XE 2.1 through 3.17S, IOS XR 2.0.0 through 5.3.2, and NX-OS allows remote attackers to cause a denial of service (packet-processing outage) via crafted ND messages, aka…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS XE 2.1 through 3.17S, IOS XR 2.0.0 through 5.3.2, and NX-OS allows remote attackers to cause a denial of service (packet-processing outage) via crafted ND messages, aka Bug ID CSCuz66542, as exploited in the wild in May 2016.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.90% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- cisco/ios · cisco/ios xe · cisco/ios xr · cisco/nx-os
- Source
- psirt@cisco.com
References
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160525-ipv6Vendor Advisory
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160824-01-ipv6-enThird Party Advisory
- http://www.securityfocus.com/bid/90872Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035962Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035963Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035964Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035965Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036651
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160525-ipv6Vendor Advisory
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160824-01-ipv6-enThird Party Advisory
- http://www.securityfocus.com/bid/90872Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035962Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035963Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035964Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035965Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036651
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.