CVE-2019-1830

Cisco Wireless LAN Controller Locally Significant Certificate Denial of Service Vulnerability

MEDIUM
4.9
CVSS Score
Published: April 18, 2019 at 01:15 AM UTC
Updated: June 17, 2026 at 02:29 AM UTC
2 products affected across 1 vendorWireless LAN Controller SoftwareWireless LAN Controller

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Severity
MEDIUM4.9
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability in Locally Significant Certificate (LSC) management for the Cisco Wireless LAN Controller (WLC) could allow an authenticated, remote attacker to cause the device to unexpectedly restart, which causes a denial of service (DoS) condition. The attacker would need to have valid administrator credentials. The vulnerability is due to incorrect input validation of the HTTP URL used to establish a connection to the LSC Certificate Authority (CA). An attacker could exploit this vulnerability by authenticating to the targeted device and configuring a LSC certificate. An exploit could allow the attacker to cause a DoS condition due to an unexpected restart of the device.

Affected

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

v < 8.3.150.08.5.131.0 ≤ v < 8.5.140.08.6.101.0 ≤ v < 8.8.100.0
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 8.8.100.0, 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

4.9MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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