CVE-2025-20198: Input Validation
First published: Wed May 07 2025(Updated: )
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker with privilege level 15 to elevate privileges to root on the underlying operating system of an affected device. This vulnerability is due to insufficient input validation when processing specific configuration commands. An attacker could exploit this vulnerability by including crafted input in specific configuration commands. A successful exploit could allow the attacker to elevate privileges to root on the underlying operating system of an affected device. The security impact rating (SIR) of this advisory has been raised to High because an attacker could gain access to the underlying operating system of the affected device and perform potentially undetected actions. Note: The attacker must have privileges to enter configuration mode on the affected device. This is usually referred to as privilege level 15.
Credit: psirt@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-20198?
CVE-2025-20198 is rated as high severity due to its potential to allow privilege escalation to root on affected devices.
How do I fix CVE-2025-20198?
To fix CVE-2025-20198, users should update to the latest version of Cisco IOS XE Software that addresses this vulnerability.
Who is affected by CVE-2025-20198?
CVE-2025-20198 affects devices running vulnerable versions of Cisco IOS XE Software where authenticated local attackers can exploit the vulnerability.
What type of attack does CVE-2025-20198 enable?
CVE-2025-20198 enables authenticated local attackers to elevate their privileges to root on the underlying operating system.
Is there a workaround for CVE-2025-20198?
There are currently no documented workarounds for CVE-2025-20198; upgrading to a patched version is recommended.
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