Medium severity · published Sep 7, 2017
CVE-2017-12211
A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU…
5.3
CVSS
1.6%
EPSS
No
On KEV
Description
A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU usage or a reload of the device. The vulnerability is due to IPv6 sub block corruption. An attacker could exploit this vulnerability by polling the affected device IPv6 information. An exploit could allow the attacker to trigger high CPU usage or a reload of the device. Known Affected Releases: Denali-16.3.1. Cisco Bug IDs: CSCvb14640.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IX
IOS XE · Cisco
3.16.1 · source: NVD
IO
Ios · Cisco
3.16.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12211
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12211
Third Party Advisory
http://www.securityfocus.com/bid/100648
Third Party Advisory
http://www.securitytracker.com/id/1039290
Vendor Advisory
https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb14640
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmp
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