Unrated severityNVD Advisory· Published Aug 5, 2026· Updated Aug 5, 2026
Cisco IOS XE Software Blocks Extensible Exchange Protocol Denial of Service Vulnerability
CVE-2026-20263
Description
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.
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Affected products
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