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Vulnerability Intelligence

CVE-2026-20263

High 8.6

Published
Last modified
NVD status
Analyzed

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.

Affected products

cisco: ios xe

References1

Metrics

CVSS 3.1
8.6 HIGH Score source: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS — exploit probability
1% percentile: 48 · as of 13 November 2026
CWE
CWE-388

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