CVE-2020-3439

Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability

MEDIUM
4.8
CVSS Score
Published: August 26, 2020 at 04:16 PM UTC
Updated: June 17, 2026 at 03:18 AM UTC
1 product affected across 1 vendorData Center Network Manager

Using Cisco Data Center Network Manager by Cisco?

Get instant alerts when new vulnerabilities affect Cisco Data Center Network Manager - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected

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

v < 11.4(1)
Affected range stops below 11.4(1), 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 automatablePartial impact

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

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card