CVE-2026-20263
HIGH
MEDIUM
Priority: 0.05
BB Relevance:
77/100
Published: 2026-08-05
Modified: 2026-10-23
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
Scope Change
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Changed
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (267)
| Vendor | Product | Version |
|---|---|---|
| cisco | ios_xe | 16.6.2 |
| cisco | ios_xe | 16.6.3 |
| cisco | ios_xe | 16.6.4 |
| cisco | ios_xe | 16.6.4a |
| cisco | ios_xe | 16.6.4s |
| cisco | ios_xe | 16.6.5 |
| cisco | ios_xe | 16.6.5a |
| cisco | ios_xe | 16.6.5b |
| cisco | ios_xe | 16.6.6 |
| cisco | ios_xe | 16.6.7 |
| cisco | ios_xe | 16.6.7a |
| cisco | ios_xe | 16.6.8 |
| cisco | ios_xe | 16.6.9 |
| cisco | ios_xe | 16.6.10 |
| cisco | ios_xe | 16.7.1 |
| cisco | ios_xe | 16.7.1a |
| cisco | ios_xe | 16.7.1b |
| cisco | ios_xe | 16.7.2 |
| cisco | ios_xe | 16.7.3 |
| cisco | ios_xe | 16.7.4 |
| cisco | ios_xe | 16.8.1 |
| cisco | ios_xe | 16.8.1a |
| cisco | ios_xe | 16.8.1b |
| cisco | ios_xe | 16.8.1c |
| cisco | ios_xe | 16.8.1d |
| cisco | ios_xe | 16.8.1e |
| cisco | ios_xe | 16.8.1s |
| cisco | ios_xe | 16.8.2 |
| cisco | ios_xe | 16.8.3 |
| cisco | ios_xe | 16.9.1 |
Showing 30 of 267 entries
References & Advisories (1)
Vendor Advisory