CVE-2019-1826

Cisco Aironet Series Access Points Quality of Service Denial of Service Vulnerability

MEDIUM

6.8

CVSS Score

Published: April 18, 2019 at 01:15 AM UTC

Updated: June 17, 2026 at 02:29 AM UTC

13 products affected across 1 vendorAironet Access Point FirmwareAironet 3800PAironet 3800I

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Severity

MEDIUM6.8

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

A vulnerability in the quality of service (QoS) feature of Cisco Aironet Series Access Points (APs) could allow an authenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation on QoS fields within Wi-Fi frames by the affected device. An attacker could exploit this vulnerability by sending malformed Wi-Fi frames to an affected device. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a DoS condition.

Affected

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

Aironet Access Point Firmware · Cisco

95%

8.5(131.3)

cisco-aironet-1562d (environment) · cisco-aironet-1562e (environment) · cisco-aironet-1562i (environment) · cisco-aironet-1850e (environment) · cisco-aironet-1850i (environment) · cisco-aironet-2800e (environment) · cisco-aironet-2800i (environment) · cisco-aironet-3800e (environment) · cisco-aironet-3800i (environment) · cisco-aironet-3800p (environment) · cisco-aironet-4800 (environment)

Aironet Access Point · Cisco

60%

8.5

Aironet 1562D · Ciscodevice

80%

All versions

Aironet 1562E · Ciscodevice

80%

All versions

Aironet 1562I · Ciscodevice

80%

All versions