AUGUST 16, 2026
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Case File

CVE-2026-20263

HIGH · CVSS 8.6 EPSS 0.33% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software allows unauthenticated remote attackers to trigger a denial of service (DoS) by sending a specially crafted BEEP SOAP request, leading to unexpected device reloads. Organizations using affected Cisco devices should prioritize patching to mitigate the risk of service disruption. This high-severity vulnerability poses a significant threat to network availability and should be addressed promptly.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-20263
Severity
HIGH
CVSS
8.6
EPSS
0.33%
Exchange Cisco

Original NVD 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.