CVE-2017-12211

Name: CVE-2017-12211
Creator: NVD / NIST
Published: 2017-09-07T21:29:00.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.65%

Last modified Jun 17, 2026

CVE-2017-12211 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.65% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.65%

73.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Ios	3.16.1
Cisco	Ios Xe	3.16.1

References

http://www.securityfocus.com/bid/100648Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039290Third Party Advisory, VDB Entry
https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb14640Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmpVendor Advisory
http://www.securityfocus.com/bid/100648Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039290Third Party Advisory, VDB Entry
https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb14640Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmpVendor Advisory

Timeline

Published: Sep 7, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12211?

How severe is CVE-2017-12211?

Severity scoring for CVE-2017-12211 is pending analysis. The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12211?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12211?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST