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.

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…

Vulnerability class: CRLF Injection

EPSS: 0.000 (7.7th 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)

CWE-93 — CRLF Injection

References

cisco-sa-iox-crlf-NvgKTKJZ

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.