CVE-2021-1615

HighCVSS 8.6/10Last modified Jun 17, 2026

Description

A vulnerability in the packet processing functionality of Cisco Embedded Wireless Controller (EWC) Software for Catalyst Access Points (APs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected AP. This vulnerability is due to insufficient buffer allocation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to exhaust available resources and cause a DoS condition on an affected AP, as well as a DoS condition for client traffic traversing the AP.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness enumeration

Affected software

VendorProductVersions
CiscoCisco IOS XE Softwaren/a

References

Timeline

Published
Sep 23, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-1615: High severity, CVSS 8.6 | Vulnix