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CVE Record

CVE-2019-1800: Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabilities

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.

HighCVSS 7.4Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Cisco WLC software can be forced to reload by malformed IAPP messages from an attacker on an adjacent network. The business impact is wireless controller outage, disrupting Wi-Fi service managed by the controller. The source bundle identifies affected software before 8.2.170.0, 8.5.150.0, and 8.8.100.0. Exposure is most likely where Cisco Wireless LAN Controllers run software earlier than 8.2.170.0, 8.5.150.0, or 8.8.100.0 and can receive IAPP messages from adjacent network attackers. Treat as high priority for environments dependent on Cisco WLC-managed Wi-Fi. The flaw is availability-only, but a successful attack can reload controllers and interrupt wireless operations. Mitigation focus: Upgrade affected Cisco WLC software to the fixed release train versions or later.; Review Cisco’s advisory for exact fixed releases, workarounds, and deployment caveats.; Prioritize controllers supporting critical wireless sites or high-density user areas..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2019-1800 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.4 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.4CVSS 3.0HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H2.84Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.4High
CVSS 3.0 vector shape for CVE-2019-1800Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco Wireless LAN Controller (WLC)unspecified, unspecified, unspecifiedListed
Weakness

CWE details

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