Skip to content
8.6 High

CVE-2026-20263 A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software could allow an…

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 and versions

Product Affected versions Fixed in
Cisco IOS XE Software 26.2.1ea No fix stated
Cisco IOS XE Software 26.1 26.1.1a → 26.1.1 No fix stated
Cisco IOS XE Software 17.18 17.18.1z → 17.18.3 No fix stated
Cisco IOS XE Software 17.17.1 No fix stated
Cisco IOS XE Software 17.16 17.16.1a → 17.16.1 No fix stated
Cisco IOS XE Software 17.15 17.15.1w → 17.15.5 No fix stated
Cisco IOS XE Software 17.14 17.14.1a → 17.14.1 No fix stated
Cisco IOS XE Software 17.13 17.13.1a → 17.13.1 No fix stated
Cisco IOS XE Software 17.12 17.12.1w → 17.12.7 No fix stated
Show the 18 other branches
Product Affected versions Fixed in
Cisco IOS XE Software 17.11 17.11.1a → 17.11.1 No fix stated
Cisco IOS XE Software 17.10 17.10.1a → 17.10.1 No fix stated
Cisco IOS XE Software 17.9 17.9.1w → 17.9.9 No fix stated
Cisco IOS XE Software 17.8 17.8.1a → 17.8.1 No fix stated
Cisco IOS XE Software 17.7 17.7.1a → 17.7.2 No fix stated
Cisco IOS XE Software 17.6 17.6.1x → 17.6.8 No fix stated
Cisco IOS XE Software 17.5 17.5.1a → 17.5.1 No fix stated
Cisco IOS XE Software 17.4 17.4.1c → 17.4.2 No fix stated
Cisco IOS XE Software 17.3 17.3.1w → 17.3.8 No fix stated
Cisco IOS XE Software 17.2 17.2.1v → 17.2.3 No fix stated
Cisco IOS XE Software 17.1 17.1.1s → 17.1.3 No fix stated
Cisco IOS XE Software 16.12 16.12.1y → 16.12.15 No fix stated
Cisco IOS XE Software 16.11 16.11.1s → 16.11.2 No fix stated
Cisco IOS XE Software 16.10 16.10.1f → 16.10.3 No fix stated
Cisco IOS XE Software 16.9 16.9.1d → 16.9.8 No fix stated
Cisco IOS XE Software 16.8 16.8.1e → 16.8.3 No fix stated
Cisco IOS XE Software 16.7 16.7.1a → 16.7.4 No fix stated
Cisco IOS XE Software 16.6 16.6.2 → 16.6.10 No fix stated

References

Timeline

  1. Published
  2. Last modified
The 248 CVEs of Cisco IOS XE Software →
Track this CVE