Security readout for executives and security teams
This flaw can let a logged-in Cisco WLC administrator crash and reload a controller through the web-based configuration interface. The business risk is wireless service disruption, not data theft. It matters most where controller admin accounts are broadly shared, weakly protected, or reachable from less trusted networks. Exposure is limited to Cisco Wireless LAN Controller deployments running affected software and permitting access to the administrative GUI. The attacker must already have administrator credentials, so internet exposure is less important than management-plane access control and account hygiene. Treat as a scheduled remediation item, with higher urgency for campuses or sites where WLC reloads would disrupt operations. Prioritize devices with broad admin access or weak management network separation. Mitigation focus: Upgrade affected Cisco WLC software to a non-affected release per Cisco guidance.; Restrict WLC administrative GUI access to trusted management networks.; Review and reduce administrator accounts to least necessary personnel..
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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Open ATT&CK lookupCVE-2018-0248 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
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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:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H2.34Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20190417 Cisco Wireless LAN Controller Software GUI Configuration Denial of Service VulnerabilitiesCVE reference · vendor-advisory, x_refsource_CISCO
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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.