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CVE Record

CVE-2020-3448: Cisco Cyber Vision Center Software Access Control Bypass Vulnerability

A vulnerability in an access control mechanism of Cisco Cyber Vision Center Software could allow an unauthenticated, remote attacker to bypass authentication and access internal services that are running on an affected device. The vulnerability is due to insufficient enforcement of access control in the software. An attacker could exploit this vulnerability by directly accessing the internal services of an affected device. A successful exploit could allow an attacker to impact monitoring of sensors that are managed by the software.

MediumCVSS 5.8Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Cisco Cyber Vision Center can let an unauthenticated remote attacker bypass access controls and reach internal services on an affected device. The stated business impact is disruption or alteration of sensor monitoring visibility, not full system takeover. Treat this as important for industrial visibility environments, especially where management interfaces are reachable beyond trusted networks.

Executive priority

Prioritize remediation in operational technology environments where Cyber Vision supports sensor monitoring. The rating is moderate because the described impact is limited, but unauthenticated network access and monitoring integrity concerns make unmanaged exposure unacceptable.

Technical view

The issue is an access control bypass in Cisco Cyber Vision Center Software caused by insufficient enforcement. CVSS 3.0 is 5.8: network exploitable, low complexity, no privileges or user interaction, changed scope, no confidentiality impact, low integrity impact, and no availability impact. It maps to CWE-284.

Likely exposure

Exposure is most likely in organizations running Cisco Cyber Vision Center to monitor managed sensors. Risk rises if the Center or its internal services are reachable from untrusted networks. The source bundle does not provide affected version ranges, so version-specific exposure must be confirmed against Cisco guidance.

Exploitation context

The source bundle says exploitation involves directly accessing internal services on an affected device, but it provides no exploit code or operational detail. CISA KEV status is false, and the provided sources do not state active exploitation. Evidence for real-world exploitation is therefore not established here.

Researcher notes

Key unknowns are the affected release matrix, fixed versions, and any vendor-listed workaround details, which are not included in the supplied bundle. Avoid assuming broader Cisco Cyber Vision product impact beyond Cyber Vision Center Software. Validation should focus on access control boundaries and unauthenticated service exposure.

Mitigation direction

  • Review Cisco’s advisory for affected and fixed Cyber Vision Center releases.
  • Apply Cisco-recommended updates or fixes for any confirmed affected deployment.
  • Restrict Cyber Vision Center access to trusted management networks only.
  • Block untrusted reachability to internal services on the affected device.
  • Monitor Cisco guidance for version-specific workarounds if patching is delayed.

Validation and detection

  • Inventory Cisco Cyber Vision Center deployments and ownership.
  • Compare installed versions against Cisco’s advisory.
  • Confirm management interfaces are not exposed to untrusted networks.
  • Test that unauthenticated users cannot reach internal services.
  • Review logs for suspicious unauthenticated access attempts.
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
cve · low confidence lookup

CVE-2020-3448 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
5.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/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
5.8CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.8Medium
CVSS 3.0 vector shape for CVE-2020-3448Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/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 Cyber Visionn/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.