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 CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco IOS XE Software unknown
Version Status Constraints
17.2.1a affected —
16.12.1y affected —
16.12.3s affected —
16.7.1b affected —
16.6.2 affected —
16.6.5 affected —
16.12.1w affected —
16.9.1d affected —
17.3.1 affected —
16.9.4c affected —
16.7.1 affected —
17.2.1 affected —
16.6.8 affected —
16.9.1b affected —
16.9.2s affected —
16.12.4 affected —
16.12.3a affected —
17.1.1s affected —
16.11.1a affected —
16.7.2 affected —
16.11.1b affected —
16.9.1s affected —
16.9.3h affected —
16.9.1c affected —
16.6.5a affected —
16.6.3 affected —
16.10.1f affected —
17.2.1v affected —
16.8.1e affected —
16.9.3a affected —
16.12.1a affected —
16.12.1x affected —
16.6.4s affected —
16.10.1c affected —
16.12.3 affected —
16.11.2 affected —
16.6.5b affected —
16.12.2s affected —
16.10.1b affected —
16.7.3 affected —
16.6.7 affected —
16.9.6 affected —
16.9.2 affected —
16.10.1 affected —
16.12.1t affected —
16.9.1 affected —
16.8.1a affected —
16.9.3s affected —
16.6.7a affected —
16.12.2 affected —
16.11.1 affected —
16.9.3 affected —
16.11.1s affected —
16.12.1 affected —
17.1.1 affected —
17.1.2 affected —
16.10.1d affected —
17.1.1t affected —
16.9.4 affected —
16.8.3 affected —
16.12.2t affected —
16.9.5 affected —
16.8.1s affected —
16.10.1e affected —
16.8.2 affected —
16.6.4 affected —
16.8.1b affected —
16.10.1a affected —
16.12.1z affected —
16.8.1c affected —
16.9.1a affected —
16.9.5f affected —
16.6.4a affected —
16.10.1g affected —
16.8.1 affected —
16.6.6 affected —
16.9.2a affected —
16.8.1d affected —
16.10.3 affected —
16.7.1a affected —
16.11.1c affected —
16.10.1s affected —
17.2.1r affected —
17.1.1a affected —
16.10.2 affected —
16.12.2a affected —
16.12.1c affected —
16.12.1s affected —
16.7.4 affected —
17.2.2 affected —
16.9.8 affected —
16.9.7 affected —
17.1.3 affected —
17.3.1a affected —
17.3.2a affected —
16.12.5 affected —
17.3.1w affected —
17.3.2 affected —
17.4.1 affected —
16.12.4a affected —
17.4.1a affected —
17.3.1x affected —
17.3.3 affected —
16.6.9 affected —
17.2.3 affected —
17.5.1 affected —
16.12.1z1 affected —
16.12.5a affected —
17.4.1b affected —
17.3.1z affected —
16.12.5b affected —
17.4.2 affected —
17.3.3a affected —
17.3.5 affected —
17.3.4 affected —
17.5.1a affected —
16.12.6 affected —
17.6.1 affected —
16.12.1z2 affected —
16.6.10 affected —
17.3.4a affected —
17.6.1a affected —
17.7.1 affected —
17.6.1x affected —
17.6.2 affected —
16.12.6a affected —
17.3.4c affected —
17.4.2a affected —
17.3.4b affected —
17.7.1a affected —
16.12.7 affected —
17.8.1a affected —
17.6.3a affected —
17.6.3 affected —
17.7.2 affected —
17.7.1b affected —
17.9.1w affected —
17.3.5a affected —
17.6.1z affected —
16.12.8 affected —
17.8.1 affected —
17.9.1 affected —
17.6.4 affected —
17.3.5b affected —
17.9.1a affected —
17.3.6 affected —
17.10.1 affected —
16.9.8a affected —
17.6.1z1 affected —
17.10.1a affected —
17.9.2 affected —
17.6.5 affected —
17.9.1x affected —
17.9.1y affected —
16.9.8b affected —
17.3.7 affected —
17.9.2a affected —
17.9.3 affected —
16.12.9 affected —
17.11.1 affected —
17.10.1b affected —
17.6.6 affected —
17.9.1x1 affected —
17.11.1a affected —
17.9.3a affected —
17.12.1 affected —
17.3.8 affected —
17.9.4 affected —
16.12.10 affected —
17.12.1w affected —
17.9.1y1 affected —
17.12.1a affected —
17.9.5 affected —
17.13.1 affected —
17.12.1x affected —
17.12.2 affected —
17.14.1 affected —
17.9.4a affected —
17.3.8a affected —
17.6.6a affected —
17.6.5a affected —
17.6.7 affected —
16.12.10a affected —
17.15.1 affected —
17.13.1a affected —
17.12.2a affected —
16.12.11 affected —
17.12.3 affected —
17.12.1y affected —
17.12.1z affected —
17.9.5a affected —
17.14.1a affected —
17.9.5b affected —
17.6.8 affected —
16.12.12 affected —
17.12.4 affected —
17.9.6 affected —
17.17.1 affected —
17.16.1 affected —
17.15.1w affected —
17.12.3a affected —
17.9.5c affected —
17.15.1a affected —
17.12.1z1 affected —
17.15.2 affected —
17.15.1b affected —
17.9.5d affected —
17.15.1x affected —
17.9.6a affected —
17.12.1z2 affected —
17.6.8a affected —
17.16.1a affected —
16.12.13 affected —
17.15.3 affected —
17.9.7 affected —
17.12.5 affected —
17.15.1y affected —
17.9.5e affected —
17.12.4a affected —
17.15.2a affected —
17.15.2c affected —
17.15.2b affected —
17.12.1z3 affected —
17.9.5f affected —
17.12.4b affected —
17.12.5a affected —
17.18.1 affected —
17.12.6 affected —
17.12.1z4 affected —
17.9.8 affected —
17.9.7a affected —
17.15.3a affected —
17.15.4 affected —
17.12.5b affected —
17.15.3b affected —
16.12.14 affected —
17.18.1z affected —
17.9.7b affected —
17.12.5c affected —
26.1.1 affected —
17.18.1a affected —
17.15.4a affected —
17.18.2 affected —
17.18.1w affected —
17.15.4b affected —
17.12.6a affected —
17.12.7 affected —
17.15.4c affected —
17.9.9 affected —
17.12.5d affected —
16.12.15 affected —
17.15.4s1 affected —
17.15.5 affected —
17.12.1z5 affected —
17.18.1x affected —
17.12.1z6 affected —
17.15.4d affected —
17.12.6b affected —
17.4.1c affected —
17.15.5a affected —
17.18.1y affected —
17.12.7a affected —
17.18.3 affected —
17.12.7b affected —
17.18.3a affected —
26.1.1a affected —
26.2.1ea affected —

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-bing-MGHrFAkd cve-icon
History

Wed, 05 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 05 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
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.
Title Cisco IOS XE Software Blocks Extensible Exchange Protocol Denial of Service Vulnerability
Weaknesses CWE-388
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-08-05T17:45:15.473Z

Reserved: 2025-10-08T11:59:15.402Z

Link: CVE-2026-20263

cve-icon Vulnrichment

Updated: 2026-08-05T17:39:26.566Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T19:00:05Z

Weaknesses