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TI-2017-08990 Aliases CVE-2017-12211GHSA-7664-hhqm-4p3m

Resource management flaw in Cisco IOS and Cisco IOS XE

Priority LOW 27CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

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.

Why it matters now

EPSS 0.01647 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cisco IOS and Cisco IOS XECisco IOS and Cisco IOS XE—No fix listedCNA
  • Cisco IOS and Cisco IOS XE Vendor— Affected Cisco IOS and Cisco IOS XE Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios:3.16.1:*:*:*:*:*:*:*3.16.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.16.1:*:*:*:*:*:*:*3.16.1VulnerableCisco
  • cpe:2.3:o:cisco:ios:3.16.1:*:*:*:*:*:*:* Versions 3.16.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.16.1:*:*:*:*:*:*:* Versions 3.16.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12211
  2. 2026-10-03 Alias added: GHSA-7664-hhqm-4p3m

References

Advisory 2

  • TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09019 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
See all 617 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences