CVE-2022-20676

Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability

MEDIUM
6.7
CVSS Score
Published: April 15, 2022 at 02:16 PM UTC
Updated: June 17, 2026 at 04:24 AM UTC
1 product affected across 1 vendorIOS Xe

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.3%

Description

A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-250CWE-20

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