CVE-2020-3594

Cisco SD-WAN Software Privilege Escalation Vulnerability

HIGH
7.8
CVSS Score
Published: November 6, 2020 at 06:17 PM UTC
Updated: June 17, 2026 at 03:18 AM UTC
2 products affected across 1 vendorSd WANCisco SD-WAN Solution

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability in Cisco SD-WAN Software could allow an authenticated, local attacker to elevate privileges to root on the underlying operating system. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by providing crafted options to a specific command. A successful exploit could allow the attacker to gain root privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 20.1.220.3 ≤ v < 20.3.2
Affected range stops below 20.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 20.3.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.8HIGHcisco
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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