Remote denial of service in Cisco IOS
| Risk | High |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-1409 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
Cisco IOS XR Operating systems & Components / Operating system Cisco IOS Operating systems & Components / Operating system Cisco IOS XE Operating systems & Components / Operating system |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Improper input validation
EUVDB-ID: #VU6181
Risk: High
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:U/RC:C]
CVE-ID: CVE-2016-1409
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a logic error when parsing IPv6 Neighbor Discovery (ND) packets, sent directly to the device. A remote attacker can send specially crafted IPv6 traffic to the affected device and cause the device to stop processing IPv6 traffic.
Successful exploitation of the vulnerability will result in denial of service attack.
Note: according to Cisco, this vulnerability is being exploited in the wild.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsCisco IOS XR: All versions
Cisco IOS: All versions
Cisco IOS XE: All versions
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160525-ipv6
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
