CVE-2019-1796

Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabilities

MEDIUM
6.5
CVSS Score
Published: April 18, 2019 at 12:45 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
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A vulnerability in the handling of Inter-Access Point Protocol (IAPP) messages by Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability exist because the software improperly validates input on fields within IAPP messages. An attacker could exploit the vulnerability by sending malicious IAPP messages to an affected device. A successful exploit could allow the attacker to cause the Cisco WLC Software to reload, resulting in a DoS condition. Software versions prior to 8.2.170.0, 8.5.150.0, and 8.8.100.0 are affected.

Affected

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

v < 8.2.170.0v < 8.3.150.0v < 8.8.100.0
Affected range stops below 8.2.170.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.3.150.0, 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
8.3.143.0 ≤ v < 8.5.150.08.7.106.0 ≤ v < 8.8.100.0
Affected range stops below 8.5.150.0, 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

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-399CWE-20

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