CVE-2026-20113

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 li

Severity
Medium 5.3
CVSS 3.1
Remote · no auth what this means
Exploited
Not listed
EPSS
0.003
19.6th percentile
Discovered by
Third party
Vendor-published field
Published
Mar 25, 2026
Assigned by cisco

Description

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.

Weakness: CWE-93

Affected products

Vendor Product Category Matched by
Cisco Cisco IOS XE Software Routing & Switching cna-assigner
Vendor-reported products (1)
  • Cisco · Cisco IOS XE Software

Vendor advisory

cisco-sa-iox-crlf-NvgKTKJZ

Cisco IOx Application Hosting Environment Carriage Return Line Feed Injection Vulnerability

Cisco’s rating: Medium (advisory CVSS 5.3) · Published Mar 25, 2026

Bug ID: CSCwq69499

The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from

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