CVE-2026-20263
published 2026-08-05CVE-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…
PriorityP354high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
EPSS
0.57%
47.1th percentile
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
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VulDB
Cisco IOS XE Software up to 26.2.1ea BEEP denial of service (Nessus ID 334512)
vuldb·2026-08-12·CVSS 8.6
CVE-2026-20263 [HIGH] Cisco IOS XE Software up to 26.2.1ea BEEP denial of service (Nessus ID 334512)
A vulnerability categorized as critical has been discovered in Cisco IOS XE Software. This impacts an unknown function of the component BEEP. Executing a manipulation can lead to denial of service.
This vulnerability is handled as CVE-2026-20263. The attack can be executed remotely. There is not any exploit available.
It is advisable to upgrade the affected component.
GHSA
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 af
ghsa_unreviewed·2026-08-05
CVE-2026-20263 [HIGH] 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 af
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-08-05
Published