CVE-2026-20113

Summary

A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack against a user. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to arbitrarily inject log entries, manipulate the structure of log files, or obscure legitimate log events.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco IOS XE Software16.6.1affected
CiscoCisco IOS XE Software16.6.2affected
CiscoCisco IOS XE Software16.6.3affected
CiscoCisco IOS XE Software16.6.4affected
CiscoCisco IOS XE Software16.6.5affected
CiscoCisco IOS XE Software16.6.4aaffected
CiscoCisco IOS XE Software16.6.5aaffected
CiscoCisco IOS XE Software16.6.6affected
CiscoCisco IOS XE Software16.6.7affected
CiscoCisco IOS XE Software16.6.8affected
CiscoCisco IOS XE Software16.6.9affected
CiscoCisco IOS XE Software16.6.10affected
CiscoCisco IOS XE Software16.7.1affected
CiscoCisco IOS XE Software16.7.1aaffected
CiscoCisco IOS XE Software16.7.1baffected
CiscoCisco IOS XE Software16.7.2affected
CiscoCisco IOS XE Software16.7.3affected
CiscoCisco IOS XE Software16.7.4affected
CiscoCisco IOS XE Software16.8.1affected
CiscoCisco IOS XE Software16.8.1aaffected
CiscoCisco IOS XE Software16.8.1baffected
CiscoCisco IOS XE Software16.8.1saffected
CiscoCisco IOS XE Software16.8.1caffected
CiscoCisco IOS XE Software16.8.1daffected
CiscoCisco IOS XE Software16.8.2affected
CiscoCisco IOS XE Software16.8.1eaffected
CiscoCisco IOS XE Software16.8.3affected
CiscoCisco IOS XE Software16.9.1affected
CiscoCisco IOS XE Software16.9.2affected
CiscoCisco IOS XE Software16.9.1aaffected
CiscoCisco IOS XE Software16.9.1baffected
CiscoCisco IOS XE Software16.9.1saffected
CiscoCisco IOS XE Software16.9.3affected
CiscoCisco IOS XE Software16.9.4affected
CiscoCisco IOS XE Software16.9.5affected
CiscoCisco IOS XE Software16.9.5faffected
CiscoCisco IOS XE Software16.9.6affected
CiscoCisco IOS XE Software16.9.7affected
CiscoCisco IOS XE Software16.9.8affected
CiscoCisco IOS XE Software16.10.1affected
CiscoCisco IOS XE Software16.10.1aaffected
CiscoCisco IOS XE Software16.10.1baffected
CiscoCisco IOS XE Software16.10.1saffected
CiscoCisco IOS XE Software16.10.1caffected
CiscoCisco IOS XE Software16.10.1eaffected
CiscoCisco IOS XE Software16.10.1daffected
CiscoCisco IOS XE Software16.10.2affected
CiscoCisco IOS XE Software16.10.1faffected
CiscoCisco IOS XE Software16.10.1gaffected
CiscoCisco IOS XE Software16.10.3affected
CiscoCisco IOS XE Software16.11.1affected
CiscoCisco IOS XE Software16.11.1aaffected
CiscoCisco IOS XE Software16.11.1baffected
CiscoCisco IOS XE Software16.11.2affected
CiscoCisco IOS XE Software16.11.1saffected
CiscoCisco IOS XE Software16.12.1affected
CiscoCisco IOS XE Software16.12.1saffected
CiscoCisco IOS XE Software16.12.1aaffected
CiscoCisco IOS XE Software16.12.1caffected
CiscoCisco IOS XE Software16.12.1waffected
CiscoCisco IOS XE Software16.12.2affected
CiscoCisco IOS XE Software16.12.1yaffected
CiscoCisco IOS XE Software16.12.2aaffected
CiscoCisco IOS XE Software16.12.3affected
CiscoCisco IOS XE Software16.12.8affected
CiscoCisco IOS XE Software16.12.2saffected
CiscoCisco IOS XE Software16.12.1xaffected
CiscoCisco IOS XE Software16.12.1taffected
CiscoCisco IOS XE Software16.12.4affected
CiscoCisco IOS XE Software16.12.3saffected
CiscoCisco IOS XE Software16.12.3aaffected
CiscoCisco IOS XE Software16.12.4aaffected
CiscoCisco IOS XE Software16.12.5affected
CiscoCisco IOS XE Software16.12.6affected
CiscoCisco IOS XE Software16.12.1z1affected
CiscoCisco IOS XE Software16.12.5aaffected
CiscoCisco IOS XE Software16.12.5baffected
CiscoCisco IOS XE Software16.12.1z2affected
CiscoCisco IOS XE Software16.12.6aaffected
CiscoCisco IOS XE Software16.12.7affected
CiscoCisco IOS XE Software16.12.10aaffected
CiscoCisco IOS XE Software16.12.11affected
CiscoCisco IOS XE Software17.1.1affected
CiscoCisco IOS XE Software17.1.1aaffected
CiscoCisco IOS XE Software17.1.1saffected
CiscoCisco IOS XE Software17.1.1taffected
CiscoCisco IOS XE Software17.1.3affected
CiscoCisco IOS XE Software17.2.1affected
CiscoCisco IOS XE Software17.2.1raffected
CiscoCisco IOS XE Software17.2.1aaffected
CiscoCisco IOS XE Software17.2.1vaffected
CiscoCisco IOS XE Software17.2.2affected
CiscoCisco IOS XE Software17.2.3affected
CiscoCisco IOS XE Software17.3.1affected
CiscoCisco IOS XE Software17.3.2affected
CiscoCisco IOS XE Software17.3.3affected
CiscoCisco IOS XE Software17.3.1aaffected
CiscoCisco IOS XE Software17.3.1waffected
CiscoCisco IOS XE Software17.3.2aaffected
CiscoCisco IOS XE Software17.3.1xaffected
CiscoCisco IOS XE Software17.3.1zaffected
CiscoCisco IOS XE Software17.3.4affected
CiscoCisco IOS XE Software17.3.5affected
CiscoCisco IOS XE Software17.3.4aaffected
CiscoCisco IOS XE Software17.3.6affected
CiscoCisco IOS XE Software17.3.4baffected
CiscoCisco IOS XE Software17.3.4caffected
CiscoCisco IOS XE Software17.3.5aaffected
CiscoCisco IOS XE Software17.3.5baffected
CiscoCisco IOS XE Software17.3.7affected
CiscoCisco IOS XE Software17.3.8affected
CiscoCisco IOS XE Software17.3.8aaffected
CiscoCisco IOS XE Software17.4.1affected
CiscoCisco IOS XE Software17.4.2affected
CiscoCisco IOS XE Software17.4.1aaffected
CiscoCisco IOS XE Software17.4.1baffected
CiscoCisco IOS XE Software17.4.2aaffected
CiscoCisco IOS XE Software17.5.1affected
CiscoCisco IOS XE Software17.5.1aaffected
CiscoCisco IOS XE Software17.6.1affected
CiscoCisco IOS XE Software17.6.2affected
CiscoCisco IOS XE Software17.6.1waffected
CiscoCisco IOS XE Software17.6.1aaffected
CiscoCisco IOS XE Software17.6.1xaffected
CiscoCisco IOS XE Software17.6.3affected
CiscoCisco IOS XE Software17.6.1yaffected
CiscoCisco IOS XE Software17.6.1zaffected
CiscoCisco IOS XE Software17.6.3aaffected
CiscoCisco IOS XE Software17.6.4affected
CiscoCisco IOS XE Software17.6.1z1affected
CiscoCisco IOS XE Software17.6.5affected
CiscoCisco IOS XE Software17.6.6affected
CiscoCisco IOS XE Software17.6.6aaffected
CiscoCisco IOS XE Software17.6.5aaffected
CiscoCisco IOS XE Software17.6.7affected
CiscoCisco IOS XE Software17.6.8affected
CiscoCisco IOS XE Software17.6.8aaffected
CiscoCisco IOS XE Software17.7.1affected
CiscoCisco IOS XE Software17.7.1aaffected
CiscoCisco IOS XE Software17.7.1baffected
CiscoCisco IOS XE Software17.7.2affected
CiscoCisco IOS XE Software17.10.1affected
CiscoCisco IOS XE Software17.10.1aaffected
CiscoCisco IOS XE Software17.10.1baffected
CiscoCisco IOS XE Software17.8.1affected
CiscoCisco IOS XE Software17.8.1aaffected
CiscoCisco IOS XE Software17.9.1affected
CiscoCisco IOS XE Software17.9.1waffected
CiscoCisco IOS XE Software17.9.2affected
CiscoCisco IOS XE Software17.9.1aaffected
CiscoCisco IOS XE Software17.9.1xaffected
CiscoCisco IOS XE Software17.9.1yaffected
CiscoCisco IOS XE Software17.9.3affected
CiscoCisco IOS XE Software17.9.2aaffected
CiscoCisco IOS XE Software17.9.1x1affected
CiscoCisco IOS XE Software17.9.3aaffected
CiscoCisco IOS XE Software17.9.4affected
CiscoCisco IOS XE Software17.9.1y1affected
CiscoCisco IOS XE Software17.9.5affected
CiscoCisco IOS XE Software17.9.4aaffected
CiscoCisco IOS XE Software17.9.5aaffected
CiscoCisco IOS XE Software17.9.5baffected
CiscoCisco IOS XE Software17.9.6affected
CiscoCisco IOS XE Software17.9.6aaffected
CiscoCisco IOS XE Software17.9.7affected
CiscoCisco IOS XE Software17.9.5eaffected
CiscoCisco IOS XE Software17.9.5faffected
CiscoCisco IOS XE Software17.9.8affected
CiscoCisco IOS XE Software17.9.7aaffected
CiscoCisco IOS XE Software17.9.7baffected
CiscoCisco IOS XE Software17.11.1affected
CiscoCisco IOS XE Software17.11.1aaffected
CiscoCisco IOS XE Software17.12.1affected
CiscoCisco IOS XE Software17.12.1waffected
CiscoCisco IOS XE Software17.12.1aaffected
CiscoCisco IOS XE Software17.12.1xaffected
CiscoCisco IOS XE Software17.12.2affected
CiscoCisco IOS XE Software17.12.3affected
CiscoCisco IOS XE Software17.12.2aaffected
CiscoCisco IOS XE Software17.12.1yaffected
CiscoCisco IOS XE Software17.12.1zaffected
CiscoCisco IOS XE Software17.12.4affected
CiscoCisco IOS XE Software17.12.3aaffected
CiscoCisco IOS XE Software17.12.1z1affected
CiscoCisco IOS XE Software17.12.1z2affected
CiscoCisco IOS XE Software17.12.4aaffected
CiscoCisco IOS XE Software17.12.5affected
CiscoCisco IOS XE Software17.12.4baffected
CiscoCisco IOS XE Software17.12.1z3affected
CiscoCisco IOS XE Software17.12.5aaffected
CiscoCisco IOS XE Software17.12.1z4affected
CiscoCisco IOS XE Software17.12.6affected
CiscoCisco IOS XE Software17.12.5baffected
CiscoCisco IOS XE Software17.12.5caffected
CiscoCisco IOS XE Software17.12.6aaffected
CiscoCisco IOS XE Software17.12.5daffected
CiscoCisco IOS XE Software17.12.1z5affected
CiscoCisco IOS XE Software17.12.1z6affected
CiscoCisco IOS XE Software17.12.6baffected
CiscoCisco IOS XE Software17.13.1affected
CiscoCisco IOS XE Software17.13.1aaffected
CiscoCisco IOS XE Software17.14.1affected
CiscoCisco IOS XE Software17.14.1aaffected
CiscoCisco IOS XE Software17.15.1affected
CiscoCisco IOS XE Software17.15.1waffected
CiscoCisco IOS XE Software17.15.1aaffected
CiscoCisco IOS XE Software17.15.2affected
CiscoCisco IOS XE Software17.15.1baffected
CiscoCisco IOS XE Software17.15.1xaffected
CiscoCisco IOS XE Software17.15.1zaffected
CiscoCisco IOS XE Software17.15.3affected
CiscoCisco IOS XE Software17.15.2caffected
CiscoCisco IOS XE Software17.15.2aaffected
CiscoCisco IOS XE Software17.15.1yaffected
CiscoCisco IOS XE Software17.15.2baffected
CiscoCisco IOS XE Software17.15.3aaffected
CiscoCisco IOS XE Software17.15.4affected
CiscoCisco IOS XE Software17.15.3baffected
CiscoCisco IOS XE Software17.15.4daffected
CiscoCisco IOS XE Software17.15.4eaffected
CiscoCisco IOS XE Software17.16.1affected
CiscoCisco IOS XE Software17.16.1aaffected
CiscoCisco IOS XE Software17.17.1affected
CiscoCisco IOS XE Software17.18.1affected
CiscoCisco IOS XE Software17.18.1waffected
CiscoCisco IOS XE Software17.18.1aaffected
CiscoCisco IOS XE Software17.18.1xaffected

Weaknesses

  • CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

ADP Enrichment

CISA ADP Vulnrichment

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

References