CVE-2017-12211 json
A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authentica…
published 2017-09-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3784
- cvss
- 5.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.65% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 6.3 | AV:N/AC:M/Au:S/C:N/I:N/A:C |
Affected products
- n/a Cisco IOS and Cisco IOS XE
Classification
- Weakness
-
- CWE-399 Resource Management Errors
- Technology feeds
References
-
quickview.cloudapps.cisco.com
/quickview/bug/CSCvb14640
vendor-advisory
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmp
vendor-advisory
-
securityfocus.com
/bid/100648
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1039290
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-12211
- NVD CVE-2017-12211
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.