CVE-2021-1383

Cisco IOS XE SD-WAN Software Parameter Injection Vulnerabilities

MEDIUM
6.7
CVSS Score
Published: March 24, 2021 at 08:07 PM UTC
Updated: June 17, 2026 at 03:31 AM UTC
2 products affected across 1 vendorIOS XeIOS Xe Sd WAN

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

Multiple vulnerabilities in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system with root privileges. These vulnerabilities are due to insufficient input validation of certain CLI commands. An attacker could exploit these vulnerabilities by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to access the underlying operating system with root privileges.

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

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-20CWE-88

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