CVE-2026-20301

Wednesday, August 05, 2026

8.6

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Summary

A vulnerability in the Extensible Messaging Client Protocol (XMCP), also referred to as the External Client protocol, of Cisco IOS Software and 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 of malformed XMCP packets. An attacker could exploit this vulnerability by sending a malformed XMCP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition. The attacker does not need the XMCP client username to exploit this vulnerability.

Affected Software

Vendor	Product	Version Range	Status
Cisco	Cisco IOS XE Software	`17.2.1a`	affected
Cisco	Cisco IOS XE Software	`16.12.1y`	affected
Cisco	Cisco IOS XE Software	`16.12.3s`	affected
Cisco	Cisco IOS XE Software	`16.7.1b`	affected
Cisco	Cisco IOS XE Software	`16.6.2`	affected
Cisco	Cisco IOS XE Software	`16.6.5`	affected
Cisco	Cisco IOS XE Software	`16.12.1w`	affected
Cisco	Cisco IOS XE Software	`16.9.1d`	affected
Cisco	Cisco IOS XE Software	`17.3.1`	affected
Cisco	Cisco IOS XE Software	`16.9.4c`	affected
Cisco	Cisco IOS XE Software	`16.7.1`	affected
Cisco	Cisco IOS XE Software	`17.2.1`	affected
Cisco	Cisco IOS XE Software	`16.6.8`	affected
Cisco	Cisco IOS XE Software	`16.9.1b`	affected
Cisco	Cisco IOS XE Software	`16.9.2s`	affected
Cisco	Cisco IOS XE Software	`16.12.4`	affected
Cisco	Cisco IOS XE Software	`16.12.3a`	affected
Cisco	Cisco IOS XE Software	`17.1.1s`	affected
Cisco	Cisco IOS XE Software	`16.11.1a`	affected
Cisco	Cisco IOS XE Software	`16.7.2`	affected
Cisco	Cisco IOS XE Software	`16.11.1b`	affected
Cisco	Cisco IOS XE Software	`16.9.1s`	affected
Cisco	Cisco IOS XE Software	`16.9.3h`	affected
Cisco	Cisco IOS XE Software	`16.9.1c`	affected
Cisco	Cisco IOS XE Software	`16.6.5a`	affected
Cisco	Cisco IOS XE Software	`16.6.3`	affected
Cisco	Cisco IOS XE Software	`16.10.1f`	affected
Cisco	Cisco IOS XE Software	`17.2.1v`	affected
Cisco	Cisco IOS XE Software	`16.8.1e`	affected
Cisco	Cisco IOS XE Software	`16.9.3a`	affected
Cisco	Cisco IOS XE Software	`16.12.1a`	affected
Cisco	Cisco IOS XE Software	`16.12.1x`	affected
Cisco	Cisco IOS XE Software	`3.16.10aS`	affected
Cisco	Cisco IOS XE Software	`16.6.4s`	affected
Cisco	Cisco IOS XE Software	`16.10.1c`	affected
Cisco	Cisco IOS XE Software	`16.12.3`	affected
Cisco	Cisco IOS XE Software	`16.11.2`	affected
Cisco	Cisco IOS XE Software	`16.6.5b`	affected
Cisco	Cisco IOS XE Software	`16.12.2s`	affected
Cisco	Cisco IOS XE Software	`16.10.1b`	affected
Cisco	Cisco IOS XE Software	`16.7.3`	affected
Cisco	Cisco IOS XE Software	`16.6.7`	affected
Cisco	Cisco IOS XE Software	`16.9.6`	affected
Cisco	Cisco IOS XE Software	`16.9.2`	affected
Cisco	Cisco IOS XE Software	`16.10.1`	affected
Cisco	Cisco IOS XE Software	`16.12.1t`	affected
Cisco	Cisco IOS XE Software	`16.9.1`	affected
Cisco	Cisco IOS XE Software	`16.8.1a`	affected
Cisco	Cisco IOS XE Software	`3.18.8aSP`	affected
Cisco	Cisco IOS XE Software	`16.9.3s`	affected
Cisco	Cisco IOS XE Software	`16.6.7a`	affected
Cisco	Cisco IOS XE Software	`16.12.2`	affected
Cisco	Cisco IOS XE Software	`16.11.1`	affected
Cisco	Cisco IOS XE Software	`16.9.3`	affected
Cisco	Cisco IOS XE Software	`16.11.1s`	affected
Cisco	Cisco IOS XE Software	`16.12.1`	affected
Cisco	Cisco IOS XE Software	`17.1.1`	affected
Cisco	Cisco IOS XE Software	`17.1.2`	affected
Cisco	Cisco IOS XE Software	`16.10.1d`	affected
Cisco	Cisco IOS XE Software	`17.1.1t`	affected
Cisco	Cisco IOS XE Software	`16.9.4`	affected
Cisco	Cisco IOS XE Software	`16.8.3`	affected
Cisco	Cisco IOS XE Software	`16.12.2t`	affected
Cisco	Cisco IOS XE Software	`16.9.5`	affected
Cisco	Cisco IOS XE Software	`16.8.1s`	affected
Cisco	Cisco IOS XE Software	`16.10.1e`	affected
Cisco	Cisco IOS XE Software	`16.8.2`	affected
Cisco	Cisco IOS XE Software	`16.6.4`	affected
Cisco	Cisco IOS XE Software	`16.8.1b`	affected
Cisco	Cisco IOS XE Software	`16.10.1a`	affected
Cisco	Cisco IOS XE Software	`16.12.1z`	affected
Cisco	Cisco IOS XE Software	`16.8.1c`	affected
Cisco	Cisco IOS XE Software	`16.9.1a`	affected
Cisco	Cisco IOS XE Software	`16.9.5f`	affected
Cisco	Cisco IOS XE Software	`16.6.4a`	affected
Cisco	Cisco IOS XE Software	`16.10.1g`	affected
Cisco	Cisco IOS XE Software	`16.8.1`	affected
Cisco	Cisco IOS XE Software	`16.6.6`	affected
Cisco	Cisco IOS XE Software	`16.9.2a`	affected
Cisco	Cisco IOS XE Software	`16.8.1d`	affected
Cisco	Cisco IOS XE Software	`16.10.3`	affected
Cisco	Cisco IOS XE Software	`16.7.1a`	affected
Cisco	Cisco IOS XE Software	`16.11.1c`	affected
Cisco	Cisco IOS XE Software	`16.10.1s`	affected
Cisco	Cisco IOS XE Software	`17.2.1r`	affected
Cisco	Cisco IOS XE Software	`17.1.1a`	affected
Cisco	Cisco IOS XE Software	`16.10.2`	affected
Cisco	Cisco IOS XE Software	`16.12.2a`	affected
Cisco	Cisco IOS XE Software	`16.12.1c`	affected
Cisco	Cisco IOS XE Software	`16.12.1s`	affected
Cisco	Cisco IOS XE Software	`16.7.4`	affected
Cisco	Cisco IOS XE Software	`3.18.9SP`	affected
Cisco	Cisco IOS XE Software	`17.2.2`	affected
Cisco	Cisco IOS XE Software	`3.11.3E`	affected
Cisco	Cisco IOS XE Software	`16.9.8`	affected
Cisco	Cisco IOS XE Software	`16.9.7`	affected
Cisco	Cisco IOS XE Software	`17.1.3`	affected
Cisco	Cisco IOS XE Software	`17.3.1a`	affected
Cisco	Cisco IOS XE Software	`3.11.4E`	affected
Cisco	Cisco IOS XE Software	`17.3.2a`	affected
Cisco	Cisco IOS XE Software	`16.12.5`	affected
Cisco	Cisco IOS XE Software	`17.3.1w`	affected
Cisco	Cisco IOS XE Software	`17.3.2`	affected
Cisco	Cisco IOS XE Software	`3.11.3aE`	affected
Cisco	Cisco IOS XE Software	`17.4.1`	affected
Cisco	Cisco IOS XE Software	`16.12.4a`	affected
Cisco	Cisco IOS XE Software	`17.4.1a`	affected
Cisco	Cisco IOS XE Software	`3.16.10bS`	affected
Cisco	Cisco IOS XE Software	`17.3.1x`	affected
Cisco	Cisco IOS XE Software	`17.3.3`	affected
Cisco	Cisco IOS XE Software	`16.6.9`	affected
Cisco	Cisco IOS XE Software	`17.2.3`	affected
Cisco	Cisco IOS XE Software	`17.5.1`	affected
Cisco	Cisco IOS XE Software	`16.12.1z1`	affected
Cisco	Cisco IOS XE Software	`16.12.5a`	affected
Cisco	Cisco IOS XE Software	`17.4.1b`	affected
Cisco	Cisco IOS XE Software	`17.3.1z`	affected
Cisco	Cisco IOS XE Software	`16.12.5b`	affected
Cisco	Cisco IOS XE Software	`17.4.2`	affected
Cisco	Cisco IOS XE Software	`17.3.3a`	affected
Cisco	Cisco IOS XE Software	`3.11.5E`	affected
Cisco	Cisco IOS XE Software	`17.3.5`	affected
Cisco	Cisco IOS XE Software	`17.3.4`	affected
Cisco	Cisco IOS XE Software	`17.5.1a`	affected
Cisco	Cisco IOS XE Software	`16.12.6`	affected
Cisco	Cisco IOS XE Software	`17.6.1`	affected
Cisco	Cisco IOS XE Software	`16.12.1z2`	affected
Cisco	Cisco IOS XE Software	`16.6.10`	affected
Cisco	Cisco IOS XE Software	`17.3.4a`	affected
Cisco	Cisco IOS XE Software	`17.6.1a`	affected
Cisco	Cisco IOS XE Software	`3.8.10cE`	affected
Cisco	Cisco IOS XE Software	`17.7.1`	affected
Cisco	Cisco IOS XE Software	`17.6.1x`	affected
Cisco	Cisco IOS XE Software	`17.6.2`	affected
Cisco	Cisco IOS XE Software	`16.12.6a`	affected
Cisco	Cisco IOS XE Software	`17.3.4c`	affected
Cisco	Cisco IOS XE Software	`17.4.2a`	affected
Cisco	Cisco IOS XE Software	`17.3.4b`	affected
Cisco	Cisco IOS XE Software	`17.7.1a`	affected
Cisco	Cisco IOS XE Software	`16.12.7`	affected
Cisco	Cisco IOS XE Software	`17.8.1a`	affected
Cisco	Cisco IOS XE Software	`17.6.3a`	affected
Cisco	Cisco IOS XE Software	`17.6.3`	affected
Cisco	Cisco IOS XE Software	`17.7.2`	affected
Cisco	Cisco IOS XE Software	`17.7.1b`	affected
Cisco	Cisco IOS XE Software	`17.9.1w`	affected
Cisco	Cisco IOS XE Software	`17.3.5a`	affected
Cisco	Cisco IOS XE Software	`17.6.1z`	affected
Cisco	Cisco IOS XE Software	`3.8.10dE`	affected
Cisco	Cisco IOS XE Software	`16.12.8`	affected
Cisco	Cisco IOS XE Software	`17.8.1`	affected
Cisco	Cisco IOS XE Software	`17.9.1`	affected
Cisco	Cisco IOS XE Software	`3.11.6E`	affected
Cisco	Cisco IOS XE Software	`17.6.4`	affected
Cisco	Cisco IOS XE Software	`3.11.7E`	affected
Cisco	Cisco IOS XE Software	`17.3.5b`	affected
Cisco	Cisco IOS XE Software	`17.9.1a`	affected
Cisco	Cisco IOS XE Software	`17.3.6`	affected
Cisco	Cisco IOS XE Software	`17.10.1`	affected
Cisco	Cisco IOS XE Software	`3.11.8E`	affected
Cisco	Cisco IOS XE Software	`16.9.8a`	affected
Cisco	Cisco IOS XE Software	`17.6.1z1`	affected
Cisco	Cisco IOS XE Software	`17.10.1a`	affected
Cisco	Cisco IOS XE Software	`17.9.2`	affected
Cisco	Cisco IOS XE Software	`17.6.5`	affected
Cisco	Cisco IOS XE Software	`17.9.1x`	affected
Cisco	Cisco IOS XE Software	`17.9.1y`	affected
Cisco	Cisco IOS XE Software	`16.9.8b`	affected
Cisco	Cisco IOS XE Software	`17.3.7`	affected
Cisco	Cisco IOS XE Software	`17.9.2a`	affected
Cisco	Cisco IOS XE Software	`17.9.3`	affected
Cisco	Cisco IOS XE Software	`16.12.9`	affected
Cisco	Cisco IOS XE Software	`17.11.1`	affected
Cisco	Cisco IOS XE Software	`17.10.1b`	affected
Cisco	Cisco IOS XE Software	`17.6.6`	affected
Cisco	Cisco IOS XE Software	`17.9.1x1`	affected
Cisco	Cisco IOS XE Software	`17.11.1a`	affected
Cisco	Cisco IOS XE Software	`17.9.3a`	affected
Cisco	Cisco IOS XE Software	`17.12.1`	affected
Cisco	Cisco IOS XE Software	`17.3.8`	affected
Cisco	Cisco IOS XE Software	`17.9.4`	affected
Cisco	Cisco IOS XE Software	`16.12.10`	affected
Cisco	Cisco IOS XE Software	`17.12.1w`	affected
Cisco	Cisco IOS XE Software	`17.9.1y1`	affected
Cisco	Cisco IOS XE Software	`17.12.1a`	affected
Cisco	Cisco IOS XE Software	`3.11.9E`	affected
Cisco	Cisco IOS XE Software	`17.9.5`	affected
Cisco	Cisco IOS XE Software	`17.13.1`	affected
Cisco	Cisco IOS XE Software	`17.12.1x`	affected
Cisco	Cisco IOS XE Software	`17.12.2`	affected
Cisco	Cisco IOS XE Software	`17.14.1`	affected
Cisco	Cisco IOS XE Software	`17.9.4a`	affected
Cisco	Cisco IOS XE Software	`17.3.8a`	affected
Cisco	Cisco IOS XE Software	`17.6.6a`	affected
Cisco	Cisco IOS XE Software	`17.6.5a`	affected
Cisco	Cisco IOS XE Software	`17.6.7`	affected
Cisco	Cisco IOS XE Software	`16.12.10a`	affected
Cisco	Cisco IOS XE Software	`17.15.1`	affected
Cisco	Cisco IOS XE Software	`17.13.1a`	affected
Cisco	Cisco IOS XE Software	`17.12.2a`	affected
Cisco	Cisco IOS XE Software	`16.12.11`	affected
Cisco	Cisco IOS XE Software	`17.12.3`	affected
Cisco	Cisco IOS XE Software	`17.12.1y`	affected
Cisco	Cisco IOS XE Software	`3.11.10E`	affected
Cisco	Cisco IOS XE Software	`17.12.1z`	affected
Cisco	Cisco IOS XE Software	`17.9.5a`	affected
Cisco	Cisco IOS XE Software	`17.14.1a`	affected
Cisco	Cisco IOS XE Software	`17.9.5b`	affected
Cisco	Cisco IOS XE Software	`17.6.8`	affected
Cisco	Cisco IOS XE Software	`16.12.12`	affected
Cisco	Cisco IOS XE Software	`17.12.4`	affected
Cisco	Cisco IOS XE Software	`17.9.6`	affected
Cisco	Cisco IOS XE Software	`17.17.1`	affected
Cisco	Cisco IOS XE Software	`17.16.1`	affected
Cisco	Cisco IOS XE Software	`17.15.1w`	affected
Cisco	Cisco IOS XE Software	`17.12.3a`	affected
Cisco	Cisco IOS XE Software	`3.11.11E`	affected
Cisco	Cisco IOS XE Software	`17.9.5c`	affected
Cisco	Cisco IOS XE Software	`17.15.1a`	affected
Cisco	Cisco IOS XE Software	`17.12.1z1`	affected
Cisco	Cisco IOS XE Software	`17.15.2`	affected
Cisco	Cisco IOS XE Software	`17.15.1b`	affected
Cisco	Cisco IOS XE Software	`17.9.5d`	affected
Cisco	Cisco IOS XE Software	`17.15.1x`	affected
Cisco	Cisco IOS XE Software	`17.9.6a`	affected
Cisco	Cisco IOS XE Software	`17.12.1z2`	affected
Cisco	Cisco IOS XE Software	`17.6.8a`	affected
Cisco	Cisco IOS XE Software	`17.16.1a`	affected
Cisco	Cisco IOS XE Software	`16.12.13`	affected
Cisco	Cisco IOS XE Software	`17.15.3`	affected
Cisco	Cisco IOS XE Software	`17.9.7`	affected
Cisco	Cisco IOS XE Software	`17.12.5`	affected
Cisco	Cisco IOS XE Software	`17.15.1y`	affected
Cisco	Cisco IOS XE Software	`17.9.5e`	affected
Cisco	Cisco IOS XE Software	`17.12.4a`	affected
Cisco	Cisco IOS XE Software	`17.15.2a`	affected
Cisco	Cisco IOS XE Software	`17.15.2c`	affected
Cisco	Cisco IOS XE Software	`17.15.2b`	affected
Cisco	Cisco IOS XE Software	`17.12.1z3`	affected
Cisco	Cisco IOS XE Software	`17.9.5f`	affected
Cisco	Cisco IOS XE Software	`17.12.4b`	affected
Cisco	Cisco IOS XE Software	`3.11.12E`	affected
Cisco	Cisco IOS XE Software	`17.12.5a`	affected
Cisco	Cisco IOS XE Software	`17.18.1`	affected
Cisco	Cisco IOS XE Software	`17.12.6`	affected
Cisco	Cisco IOS XE Software	`17.12.1z4`	affected
Cisco	Cisco IOS XE Software	`17.9.8`	affected
Cisco	Cisco IOS XE Software	`17.9.7a`	affected
Cisco	Cisco IOS XE Software	`17.15.3a`	affected
Cisco	Cisco IOS XE Software	`17.15.4`	affected
Cisco	Cisco IOS XE Software	`3.11.13E`	affected
Cisco	Cisco IOS XE Software	`17.12.5b`	affected
Cisco	Cisco IOS XE Software	`17.15.3b`	affected
Cisco	Cisco IOS XE Software	`16.12.14`	affected
Cisco	Cisco IOS XE Software	`17.18.1z`	affected
Cisco	Cisco IOS XE Software	`17.9.7b`	affected
Cisco	Cisco IOS XE Software	`17.12.5c`	affected
Cisco	Cisco IOS XE Software	`26.1.1`	affected
Cisco	Cisco IOS XE Software	`17.18.1a`	affected
Cisco	Cisco IOS XE Software	`17.15.4a`	affected
Cisco	Cisco IOS XE Software	`17.18.2`	affected
Cisco	Cisco IOS XE Software	`17.18.1w`	affected
Cisco	Cisco IOS XE Software	`17.15.4b`	affected
Cisco	Cisco IOS XE Software	`17.12.6a`	affected
Cisco	Cisco IOS XE Software	`17.12.7`	affected
Cisco	Cisco IOS XE Software	`17.15.4c`	affected
Cisco	Cisco IOS XE Software	`17.9.9`	affected
Cisco	Cisco IOS XE Software	`17.12.5d`	affected
Cisco	Cisco IOS XE Software	`16.12.15`	affected
Cisco	Cisco IOS XE Software	`17.15.4s1`	affected
Cisco	Cisco IOS XE Software	`17.15.5`	affected
Cisco	Cisco IOS XE Software	`17.12.1z5`	affected
Cisco	Cisco IOS XE Software	`17.18.1x`	affected
Cisco	Cisco IOS XE Software	`17.12.1z6`	affected
Cisco	Cisco IOS XE Software	`17.15.4d`	affected
Cisco	Cisco IOS XE Software	`17.12.6b`	affected
Cisco	Cisco IOS XE Software	`17.4.1c`	affected
Cisco	Cisco IOS XE Software	`3.11.14E`	affected
Cisco	Cisco IOS XE Software	`17.15.5a`	affected
Cisco	Cisco IOS XE Software	`17.18.1y`	affected
Cisco	Cisco IOS XE Software	`17.12.7a`	affected
Cisco	Cisco IOS XE Software	`17.18.3`	affected
Cisco	Cisco IOS XE Software	`17.12.7b`	affected
Cisco	Cisco IOS XE Software	`17.18.3a`	affected
Cisco	Cisco IOS XE Software	`26.1.1a`	affected
Cisco	Cisco IOS XE Software	`26.2.1ea`	affected
Cisco	Cisco IOS XE Software	`16.12.16`	affected
Cisco	IOS	`15.2(7)E7`	affected
Cisco	IOS	`15.2(8)E3`	affected
Cisco	IOS	`15.7(3)M10`	affected
Cisco	IOS	`15.8(3)M9`	affected
Cisco	IOS	`15.9(3)M7`	affected
Cisco	IOS	`15.2(7)E8`	affected
Cisco	IOS	`15.2(8)E4`	affected
Cisco	IOS	`15.9(3)M7a`	affected
Cisco	IOS	`15.2(2)E10c`	affected
Cisco	IOS	`15.2(4)E10d`	affected
Cisco	IOS	`15.9(3)M6a`	affected
Cisco	IOS	`15.9(3)M6b`	affected
Cisco	IOS	`15.5(1)SY10`	affected
Cisco	IOS	`15.5(1)SY11`	affected
Cisco	IOS	`15.2(6)E1a`	affected
Cisco	IOS	`15.4(1)SY4`	affected
Cisco	IOS	`15.5(1)SY1`	affected
Cisco	IOS	`15.2(2)E8`	affected
Cisco	IOS	`15.2(6)E1`	affected
Cisco	IOS	`15.7(3)M2`	affected
Cisco	IOS	`15.2(4)E6`	affected
Cisco	IOS	`15.2(1)SY6`	affected
Cisco	IOS	`15.2(4)EA7`	affected
Cisco	IOS	`15.2(6)E1s`	affected
Cisco	IOS	`15.7(3)M3`	affected
Cisco	IOS	`15.8(3)M`	affected
Cisco	IOS	`15.2(1)SY7`	affected
Cisco	IOS	`15.2(4)EA8`	affected
Cisco	IOS	`15.8(3)M0a`	affected
Cisco	IOS	`15.2(2)E9`	affected
Cisco	IOS	`15.2(6)E2`	affected
Cisco	IOS	`15.5(1)SY2`	affected
Cisco	IOS	`15.2(4)E7`	affected
Cisco	IOS	`15.2(6)E2a`	affected
Cisco	IOS	`15.2(2)E9a`	affected
Cisco	IOS	`15.8(3)M0b`	affected
Cisco	IOS	`15.2(6)E2b`	affected
Cisco	IOS	`15.8(3)M1`	affected
Cisco	IOS	`15.8(3)M1a`	affected
Cisco	IOS	`15.7(3)M4`	affected
Cisco	IOS	`15.2(1)SY8`	affected
Cisco	IOS	`15.2(4)E8`	affected
Cisco	IOS	`15.5(1)SY3`	affected
Cisco	IOS	`15.2(7)E`	affected
Cisco	IOS	`15.7(3)M4a`	affected
Cisco	IOS	`15.8(3)M2`	affected
Cisco	IOS	`15.2(7)E0a`	affected
Cisco	IOS	`15.8(3)M2a`	affected
Cisco	IOS	`15.7(3)M4b`	affected
Cisco	IOS	`15.2(2)E10`	affected
Cisco	IOS	`15.2(7)E0s`	affected
Cisco	IOS	`15.2(4)EA9`	affected
Cisco	IOS	`15.2(7)E0b`	affected
Cisco	IOS	`15.2(6)E3`	affected
Cisco	IOS	`15.9(3)M`	affected
Cisco	IOS	`15.8(3)M3`	affected
Cisco	IOS	`15.5(1)SY4`	affected
Cisco	IOS	`15.7(3)M5`	affected
Cisco	IOS	`15.2(2)E10a`	affected
Cisco	IOS	`15.2(4)E9`	affected
Cisco	IOS	`15.2(7)E1`	affected
Cisco	IOS	`15.8(3)M3b`	affected
Cisco	IOS	`15.9(3)M0a`	affected
Cisco	IOS	`15.2(7)E1a`	affected
Cisco	IOS	`15.2(4)E10`	affected
Cisco	IOS	`15.5(1)SY5`	affected
Cisco	IOS	`15.2(4)EA9a`	affected
Cisco	IOS	`15.9(3)M1`	affected
Cisco	IOS	`15.8(3)M4`	affected
Cisco	IOS	`15.7(3)M6`	affected
Cisco	IOS	`15.2(7)E2`	affected
Cisco	IOS	`15.5(1)SY6`	affected
Cisco	IOS	`15.2(7)E3`	affected
Cisco	IOS	`15.8(3)M5`	affected
Cisco	IOS	`15.7(3)M7`	affected
Cisco	IOS	`15.9(3)M2`	affected
Cisco	IOS	`15.2(7)E2b`	affected
Cisco	IOS	`15.9(3)M2a`	affected
Cisco	IOS	`15.2(4)E10a`	affected
Cisco	IOS	`15.2(7)E4`	affected
Cisco	IOS	`15.5(1)SY7`	affected
Cisco	IOS	`15.2(4)E10b`	affected
Cisco	IOS	`15.2(7)E3k`	affected
Cisco	IOS	`15.2(8)E`	affected
Cisco	IOS	`15.9(3)M3`	affected
Cisco	IOS	`15.8(3)M6`	affected
Cisco	IOS	`15.7(3)M8`	affected
Cisco	IOS	`15.8(3)M7`	affected
Cisco	IOS	`15.5(1)SY8`	affected
Cisco	IOS	`15.2(7)E5`	affected
Cisco	IOS	`15.2(8)E1`	affected
Cisco	IOS	`15.9(3)M4`	affected
Cisco	IOS	`15.2(8)E2`	affected
Cisco	IOS	`15.2(4)E10c`	affected
Cisco	IOS	`15.7(3)M9`	affected
Cisco	IOS	`15.2(2)E10b`	affected
Cisco	IOS	`15.2(7)E6`	affected
Cisco	IOS	`15.9(3)M4a`	affected
Cisco	IOS	`15.5(1)SY9`	affected
Cisco	IOS	`15.9(3)M5`	affected
Cisco	IOS	`15.8(3)M8`	affected
Cisco	IOS	`15.9(3)M6`	affected
Cisco	IOS	`15.9(3)M9`	affected
Cisco	IOS	`15.5(1)SY13`	affected
Cisco	IOS	`15.9(3)M8b`	affected
Cisco	IOS	`15.2(7)E9`	affected
Cisco	IOS	`15.5(1)SY12`	affected
Cisco	IOS	`15.7(3)M10a`	affected
Cisco	IOS	`15.9(3)M8`	affected
Cisco	IOS	`15.9(3)M8a`	affected
Cisco	IOS	`15.2(8)E5`	affected
Cisco	IOS	`15.2(7)E10`	affected
Cisco	IOS	`15.7(3)M10b`	affected
Cisco	IOS	`15.9(3)M3a`	affected
Cisco	IOS	`15.8(3)M3a`	affected
Cisco	IOS	`15.9(3)M3b`	affected
Cisco	IOS	`15.6(2)SP7`	affected
Cisco	IOS	`15.6(2)SP5`	affected
Cisco	IOS	`15.6(2)SP8`	affected
Cisco	IOS	`15.6(2)SP6`	affected
Cisco	IOS	`15.6(2)SP4`	affected
Cisco	IOS	`15.6(2)SP9`	affected
Cisco	IOS	`15.6(2)SP8a`	affected
Cisco	IOS	`15.9(3)M9a`	affected
Cisco	IOS	`15.2(8)E6`	affected
Cisco	IOS	`15.9(3)M10`	affected
Cisco	IOS	`15.2(7)E11`	affected
Cisco	IOS	`15.5(1)SY14`	affected
Cisco	IOS	`15.2(8)E7`	affected
Cisco	IOS	`15.2(4)E10e`	affected
Cisco	IOS	`15.9(3)M11`	affected
Cisco	IOS	`15.2(7)E12`	affected
Cisco	IOS	`15.5(1)SY15`	affected
Cisco	IOS	`15.2(8)E8`	affected
Cisco	IOS	`15.5(1)SY16`	affected
Cisco	IOS	`15.2(7)E13`	affected
Cisco	IOS	`15.9(3)M12`	affected
Cisco	IOS	`15.5(1)SY17`	affected
Cisco	IOS	`15.2(7)E14`	affected
Cisco	IOS	`15.9(3)M13`	affected

Weaknesses

CWE-606: Unchecked Input for Loop Condition

ADP Enrichment

CISA ADP Vulnrichment

SSVC:
Exploitation: none
- Automatable: yes
- Technical Impact: partial

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xmcp-thbAr34t

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