Medium severity5.3NVD Advisory· Published Sep 7, 2017· Updated Jun 17, 2026
CVE-2017-12211
CVE-2017-12211
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:o:cisco:ios:3.16.1:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:ios:3.16.1:*:*:*:*:*:*:*
- (no CPE)range: Denali-16.3.1
- cpe:2.3:o:cisco:ios_xe:3.16.1:*:*:*:*:*:*:*
- Range: Denali-16.3.1
Patches
Vulnerability mechanics
References
4- www.securityfocus.com/bid/100648nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1039290nvdThird Party AdvisoryVDB Entry
- quickview.cloudapps.cisco.com/quickview/bug/CSCvb14640nvdVendor Advisory
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmpnvdVendor Advisory
News mentions
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