CVE-2026-20263

A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling when parsing a specific BEEP SOAP request. An attacker could exploit this vulnerability by sending a specific BEEP SOAP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.

• cisco ios xe 16.6.2 • cisco ios xe 16.6.3 • cisco ios xe 16.6.4 • cisco ios xe 16.6.4a • cisco ios xe 16.6.4s • cisco ios xe 16.6.5 • cisco ios xe 16.6.5a • cisco ios xe 16.6.5b • cisco ios xe 16.6.6 • cisco ios xe 16.6.7 • cisco ios xe 16.6.7a • cisco ios xe 16.6.8 • cisco ios xe 16.6.9 • cisco ios xe 16.6.10 • cisco ios xe 16.7.1 • cisco ios xe 16.7.1a • cisco ios xe 16.7.1b • cisco ios xe 16.7.2 • cisco ios xe 16.7.3 • cisco ios xe 16.7.4 • cisco ios xe 16.8.1 • cisco ios xe 16.8.1a • cisco ios xe 16.8.1b • cisco ios xe 16.8.1c • cisco ios xe 16.8.1d • cisco ios xe 16.8.1e • cisco ios xe 16.8.1s • cisco ios xe 16.8.2 • cisco ios xe 16.8.3 • cisco ios xe 16.9.1 • cisco ios xe 16.9.1a • cisco ios xe 16.9.1b • cisco ios xe 16.9.1c • cisco ios xe 16.9.1d • cisco ios xe 16.9.1s • cisco ios xe 16.9.2 • cisco ios xe 16.9.2a • cisco ios xe 16.9.2s • cisco ios xe 16.9.3 • cisco ios xe 16.9.3a • cisco ios xe 16.9.3h • cisco ios xe 16.9.3s • cisco ios xe 16.9.4 • cisco ios xe 16.9.4c • cisco ios xe 16.9.5 • cisco ios xe 16.9.5f • cisco ios xe 16.9.6 • cisco ios xe 16.9.7 • cisco ios xe 16.9.8 • cisco ios xe 16.9.8a • cisco ios xe 16.9.8b • cisco ios xe 16.10.1 • cisco ios xe 16.10.1a • cisco ios xe 16.10.1b • cisco ios xe 16.10.1c • cisco ios xe 16.10.1d • cisco ios xe 16.10.1e • cisco ios xe 16.10.1f • cisco ios xe 16.10.1g • cisco ios xe 16.10.1s … and 207 more