CVE-2021-1305

Cisco SD-WAN vManage Authorization Bypass Vulnerabilities

MEDIUM
4.3
CVSS Score
Published: January 20, 2021 at 08:01 PM UTC
Updated: June 17, 2026 at 03:31 AM UTC
13 products affected across 1 vendorSd WAN FirmwareIOS Xe Sd WANSd WAN Vbond Orchestrator

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Severity
MEDIUM4.3
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Multiple vulnerabilities in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization and modify the configuration of an affected system, gain access to sensitive information, and view information that they are not authorized to access. For more information about these vulnerabilities, see the Details section of this advisory.

Affected

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

All versions
cisco-vedge-100-router (environment) · cisco-vedge-1000-router (environment) · cisco-vedge-100b-router (environment) · cisco-vedge-100m-router (environment) · cisco-vedge-100wm-router (environment) · cisco-vedge-2000-router (environment) · cisco-vedge-5000-router (environment) · cisco-vedge-cloud-router (environment)
v < 20.3.220.4.0
Affected range stops below 20.3.2, so it looks safe — our inference, not a vendor statement
cisco-vedge-100-router (environment) · cisco-vedge-1000-router (environment) · cisco-vedge-100b-router (environment) · cisco-vedge-100m-router (environment) · cisco-vedge-100wm-router (environment) · cisco-vedge-2000-router (environment) · cisco-vedge-5000-router (environment) · cisco-vedge-cloud-router (environment)
All versions
cisco-vedge-100-router (environment) · cisco-vedge-1000-router (environment) · cisco-vedge-100b-router (environment) · cisco-vedge-100m-router (environment) · cisco-vedge-100wm-router (environment) · cisco-vedge-2000-router (environment) · cisco-vedge-5000-router (environment) · cisco-vedge-cloud-router (environment)
All versions
All versions
All versions
All versions
All versions

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

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

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-863

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