CVE-2018-0248

Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities

MEDIUM
6.8
CVSS Score
Published: April 17, 2019 at 09:30 PM UTC
Updated: June 17, 2026 at 01:30 AM UTC
2 products affected across 1 vendorWireless LAN Controller SoftwareWireless LAN Controller

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Severity
MEDIUM6.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability in the administrative GUI configuration feature of Cisco Wireless LAN Controller (WLC) Software could allow an aUTHENTICated, remote attacker to cause the device to reload unexpectedly during device configuration when the administrator is using this GUI, causing a denial of service (DoS) condition on an affected device. The attacker would need to have valid administrator credentials on the device. This vulnerability is due to incomplete input validation for unexpected configuration options that the attacker could submit while accessing the GUI configuration menus. An attacker could exploit these vulnerabilities by authenticating to the device and submitting crafted user input when using the administrative GUI configuration feature. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Software versions prior to 8.3.150.0, 8.5.140.0, 8.8.111.0 are affected by this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 8.3.150.08.4 ≤ v < 8.5.140.08.6 ≤ v < 8.8.111.0
Affected range stops below 8.3.150.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.5.140.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.8.111.0, so it looks safe — our inference, not a vendor statement
v < 8.3.150.0v < 8.5.140.0v < 8.8.111.0
Affected range stops below 8.3.150.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.5.140.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.8.111.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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