CVE-2026-20113 Other in Cisco IOS XE Software
Unauthenticated remote attackers can inject CRLF sequences to manipulate or obscure log entries in Cisco IOS XE web management interfaces.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20113?
CVE-2026-20113 is a medium-severity vulnerability in Cisco IOS XE Software, published on 25 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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
Which versions are affected by CVE-2026-20113?
How do I fix CVE-2026-20113?
No fix has been published for CVE-2026-20113 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20113 being exploited?
There is no known exploitation of CVE-2026-20113 in the wild and no public exploit code.
Sources
Also known as GHSA-c9q8-fg52-4crv.