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CVE Record

CVE-2020-17133: Microsoft Dynamics Business Central/NAV Information Disclosure Vulnerability

Microsoft Dynamics Business Central/NAV Information Disclosure Vulnerability

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability could let an authenticated user disclose sensitive information from Microsoft Dynamics NAV 2015. It is not listed as known exploited in CISA KEV, but the confidentiality impact is high. Organizations using legacy NAV should treat it as a meaningful business data exposure risk and apply Microsoft guidance.

Executive priority

Prioritize remediation for any production NAV 2015 system holding financial, customer, or operational data. This is not a panic-level issue, but delaying patching leaves confidential business records exposed to authenticated misuse.

Technical view

CVE-2020-17133 is an information disclosure issue in Microsoft Dynamics Business Central/NAV. The provided affected entry names Microsoft Dynamics NAV 2015 version 1.0. CVSS 3.1 is 6.5: network reachable, low complexity, low privileges required, no user interaction, high confidentiality impact, no integrity or availability impact.

Likely exposure

Exposure is most likely in organizations still running Microsoft Dynamics NAV 2015, especially where authenticated access is broadly available or externally reachable. The source bundle does not prove broader product or version impact beyond the listed NAV 2015 entry.

Exploitation context

The bundle does not show active exploitation, and KEV is false. CVSS temporal data marks exploit maturity as unproven and remediation as official. The risk is still material because a low-privileged authenticated user may access confidential information.

Researcher notes

The source bundle provides limited technical root-cause detail and no CWE. The CVSS vector is the main technical signal: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. Avoid assuming exploitability beyond authenticated information disclosure unless Microsoft publishes more detail.

Mitigation direction

  • Apply Microsoft’s official update for CVE-2020-17133.
  • Review the MSRC advisory for product-specific update details.
  • Limit Dynamics NAV access to required authenticated users.
  • Reduce external exposure where business operations allow.
  • Monitor Microsoft guidance for any revised affected-version information.

Validation and detection

  • Inventory Microsoft Dynamics NAV 2015 deployments.
  • Confirm whether the Microsoft CVE-2020-17133 update is installed.
  • Check whether NAV services are reachable from untrusted networks.
  • Review user roles for unnecessary low-privilege access.
  • Look for unusual authenticated access to sensitive NAV data.
Prepared
Confidence
medium
Sources
4

Public sources used

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

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CVE-2020-17133 mapping review

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

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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:H/I:N/A:N/E:U/RL:O/RC:C

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
3Timeline events
1ADP providers
3Source 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:H/I:N/A:N/E:U/RL:O/RC:C2.83.6microsoft

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2020-17133Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftMicrosoft Dynamics NAV 20151.0Listed
Weakness

CWE details

No CWE listed

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