Security readout for executives and security teams
This flaw can let a nearby, unauthenticated attacker crash specific Cisco Catalyst 6800 line cards, interrupting network service. It affects a narrow configuration: vulnerable Cisco IOS, Supervisor Engine 6T, VPLS enabled, and C6800-16P10G or C6800-16P10G-XL line cards used as core-facing MPLS interfaces. Exposure is limited to Cisco Catalyst 6800 Series Switches running Cisco IOS 15.0 through 15.4 with Supervisor Engine 6T, VPLS configured, and affected line cards serving core-facing MPLS interfaces. Treat this as high priority where the narrow Cisco configuration exists, because CISA KEV status raises urgency and successful exploitation can disrupt core network availability. Non-matching environments should document non-exposure rather than spend emergency effort. Mitigation focus: Check Cisco advisory cisco-sa-20170927-vpls for fixed releases and vendor workarounds.; Prioritize upgrades for matching Catalyst 6800 VPLS deployments listed in CISA KEV.; Inventory and review VPLS use on C6800-16P10G and C6800-16P10G-XL line cards..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2017-12238 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-vplsCVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12238CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Resource Management Errors
Resource Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.