CVE-2025-20201: 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-2025-20201?
The severity of CVE-2025-20201 is critical, as it allows an authenticated attacker to escalate privileges to root.
How do I fix CVE-2025-20201?
To fix CVE-2025-20201, upgrade to a fixed version of Cisco IOS XE Software as provided in the vendor's security advisory.
Who is affected by CVE-2025-20201?
Devices running vulnerable versions of Cisco IOS XE Software with access for authenticated users at privilege level 15 are affected by CVE-2025-20201.
What is the exploitability of CVE-2025-20201?
CVE-2025-20201 is exploitable by authenticated local users, making it a serious concern for device security.
What steps should I take to mitigate CVE-2025-20201?
To mitigate CVE-2025-20201, ensure that the device is running the latest patched version of Cisco IOS XE Software and limit user access to privileged accounts.
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