What’s Vulnerable › Vulnerabilities

CVE-2019-1826: Cisco Aironet Series Access Points Quality of Service Denial of Service Vulnerability

• Severity: medium (CVSS 5.7 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-18 · updated 2026-06-17
• Weakness: CWE-20

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 products

• Cisco Aironet Access Point Software: 8.5(131.3)

References

• http://www.securityfocus.com/bid/107988
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aap-dos
• http://www.securityfocus.com/bid/107988
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aap-dos

Get alerted when CVE-2019-1826 or the next vulnerability affects your stack