Vulnerability in Cisco Ios Xe Software
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 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.
Vulnerability class: CRLF Injection
EPSS: 0.003 (21.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Cisco Ios Xe Software — versions 16.6.1, 16.6.2, 16.6.3
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20113?
- CVE-2026-20113 is a medium-severity vulnerability in Cisco Ios Xe Software, classified under CRLF Injection. CVSS score: 5.3/10. Published 2026-03-25.
- How severe is CVE-2026-20113?
- Medium severity. CVSS v3 base score is 5.3 out of 10.