LiveActive security incident?Get immediate response
CVE Record

CVE-2020-10291: RVD#3336: System information disclosure without authentication on KUKA simulators

Visual Components (owned by KUKA) is a robotic simulator that allows simulating factories and robots in order toimprove planning and decision-making processes. Visual Components software requires a special license which can beobtained from a network license server. The network license server binds to all interfaces (0.0.0.0) and listensfor packets over UDP port 5093. No authentication/authorization is required in order to communicate with theserver. The protocol being used is a property protocol by RMS Sentinel which provides the licensing infrastructurefor the network license server. RMS Sentinel license manager service exposes UDP port 5093 which provides sensitivesystem information that could be leveraged for further exploitation without any kind of authentication. Thisinformation includes detailed hardware and OS characteristics.After a decryption process, a textual protocol is found which contains a simple header with the requested command,application-identifier, and some arguments. The protocol leaks information regarding the receiving serverinformation, license information and managing licenses, among others.Through this flaw, attackers can retreive information about a KUKA simulation system, particularly, the version ofthe licensing server, which is connected to the simulator, and which will allow them to launch local simulationswith similar characteristics, further understanding the dynamics of motion virtualization and opening doors toother attacks (see RVDP#711 and RVDP#712 for subsequent vulnerabilities that compromise integrity andavailability).Beyond compromising simulations, Visual Components provides capabilities to interface with industrial machinery.Particularly, their PLC Connectivity feature 'makes it easy' to connect simulations with control systems usingeither the industry standard OPC UA or other supported vendor specific interfaces. This fills the gap of jumpingfrom simulation to real and enables attackers to pivot from the Visual Components simulator to robots or otherIndustrial Control System (ICS) devices, such as PLCs.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-10291 exposes sensitive system and license information from KUKA-owned Visual Components simulation environments without authentication. The business risk is reconnaissance: an attacker who can reach the license server may learn hardware, OS, and simulator-related details that could support later attacks against simulation or connected industrial workflows.

Executive priority

Treat this as a high-priority exposure review for robotics simulation and ICS-adjacent environments. It is not confirmed exploited in the provided sources, but it can reveal operational details useful to attackers and may sit near systems that bridge simulation and real industrial control.

Technical view

Visual Components Network License Server 2.0.8 uses RMS Sentinel licensing on UDP port 5093, binds to all interfaces, and accepts unauthenticated protocol communication. The service can disclose license server version, receiving server details, license information, and detailed hardware and OS characteristics. CVSS 3.0 is 7.5, network exploitable, no privileges or user interaction required.

Likely exposure

Exposure is most likely where Visual Components Network License Server 2.0.8 is installed and UDP 5093 is reachable from untrusted networks. Risk increases when simulation environments interface with industrial machinery, PLC Connectivity, OPC UA, or vendor-specific control interfaces.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The issue is still important because unauthenticated information disclosure can support targeted follow-on activity, including attacks against simulator integrity or availability referenced by the RVD report.

Researcher notes

The evidence supports unauthenticated network information disclosure, not integrity or availability impact for this CVE alone. The RVD text links disclosed simulator details to subsequent vulnerabilities, but those are separate issues. Avoid assuming broader product versions or exploit availability beyond the supplied record.

Mitigation direction

  • Check KUKA or Visual Components guidance for fixed versions or configuration changes.
  • Restrict UDP 5093 access to only required trusted license clients.
  • Remove public or broad network exposure for the license server.
  • Segment simulator and licensing systems from production ICS networks.
  • Review whether PLC Connectivity is necessary and appropriately isolated.

Validation and detection

  • Inventory hosts running Visual Components Network License Server 2.0.8.
  • Identify systems where the license service listens on UDP 5093.
  • Confirm UDP 5093 is not reachable from untrusted networks.
  • Check whether simulator hosts connect to PLCs, OPC UA, or ICS devices.
  • Document compensating controls if no vendor fix is available.
Prepared
Confidence
high
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-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2020-10291 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
High
CVSS
7.5 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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
7.5CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.5High
CVSS 3.0 vector shape for CVE-2020-10291Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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
KUKA Roboter GmbHVisual Components Network License Server 2.0.8unspecifiedListed
Weakness

CWE details

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

CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.