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CVE Record

CVE-2020-3592: Cisco SD-WAN vManage Software Authorization Bypass Vulnerability

A vulnerability 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. The vulnerability is due to insufficient authorization checking on an affected system. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to gain privileges beyond what would normally be authorized for their configured user authorization level. This could allow the attacker to modify the configuration of an affected system.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-3592 affects Cisco SD-WAN vManage. An authenticated user could bypass authorization checks in the web management interface and make configuration changes beyond their permitted role. This is not anonymous compromise, but it can create material operational risk because vManage controls SD-WAN configuration.

Executive priority

Treat this as a prioritized SD-WAN management-plane issue, especially in environments with many delegated operators. It is not described as unauthenticated or actively exploited in the provided sources, but unauthorized configuration changes could affect network integrity.

Technical view

The issue is an authorization bypass in Cisco SD-WAN vManage Software’s web-based management interface. Cisco attributes it to insufficient authorization checking. Exploitation requires network access and valid low-privileged credentials, with low attack complexity and high integrity impact under CVSS 3.1.

Likely exposure

Exposure is most likely where Cisco SD-WAN vManage is deployed and its web management interface is reachable by authenticated non-admin users. The source bundle does not specify affected version ranges or deployment conditions.

Exploitation context

The CVE description cites crafted HTTP requests by an authenticated remote attacker. The bundle does not show CISA KEV listing, public active exploitation, exploit code, or observed campaigns.

Researcher notes

Evidence is limited to the CVE record and Cisco advisory reference. Affected versions are not provided in the bundle. Validation should focus on authorization boundaries, role behavior, management-interface reachability, and integrity-sensitive configuration paths without attempting exploit reproduction.

Mitigation direction

  • Review Cisco’s advisory for affected releases and official remediation guidance.
  • Prioritize vendor-supported updates or configuration changes once confirmed from Cisco guidance.
  • Limit vManage web access to trusted administration networks and users.
  • Review role assignments for least-privilege access to vManage.
  • Monitor for unauthorized configuration changes in vManage audit records.

Validation and detection

  • Inventory Cisco SD-WAN vManage deployments and software versions.
  • Confirm whether each deployment matches Cisco advisory applicability.
  • Identify users with web management interface access below admin level.
  • Review recent configuration changes for unexpected low-privilege activity.
  • Verify compensating access controls around the management interface.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-284: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-3592 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2020-3592Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco SD-WAN vManagen/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.