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CVE Record

CVE-2020-10264: RTDE Interface allows unauthenticated reading of robot data and unauthenticated writing of registers and outputs

CB3 SW Version 3.3 and upwards, e-series SW Version 5.0 and upwards allow authenticated access to the RTDE (Real-Time Data Exchange) interface on port 30004 which allows setting registers, the speed slider fraction as well as digital and analog Outputs. Additionally unautheticated reading of robot data is also possible

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw can let someone on the same network as affected Universal Robots controllers read robot data and change control-related values through the RTDE interface. For executives, the concern is unauthorized visibility and manipulation of industrial robot behavior where port 30004 is reachable.

Executive priority

Prioritize this for sites using affected Universal Robots controllers in production. The business risk is unauthorized robot data access or manipulation from nearby network access, which can affect operational safety, production integrity, and incident response obligations.

Technical view

CVE-2020-10264 affects Universal Robots CB3 and e-Series controller software. The RTDE interface on TCP port 30004 is associated with reading robot data and setting registers, speed slider fraction, and digital or analog outputs. The CVSS vector rates adjacent-network, low-complexity, no-privilege, no-user-interaction impact as high.

Likely exposure

Exposure is most likely where affected CB3 SW 3.3 up to 3.12.1 or e-Series SW 5.0 up to 5.7 controllers have RTDE port 30004 reachable from adjacent networks or insufficiently segmented industrial networks.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. CVSS indicates exploitation requires adjacent-network access, not internet-scale remote access, and does not require credentials or user interaction. Evidence on public exploit availability is incomplete in the supplied bundle.

Researcher notes

The bundle contains a wording inconsistency: the title says unauthenticated writing, while the description mentions authenticated access but also unauthenticated reading. The CVSS vector uses PR:N. Treat authentication details as requiring vendor confirmation before making definitive exposure claims beyond the supplied record.

Mitigation direction

  • Check Universal Robots guidance for fixed firmware or RTDE access recommendations.
  • Restrict access to TCP port 30004 to trusted robot-control systems only.
  • Segment robot controller networks from corporate and guest networks.
  • Monitor unexpected RTDE connections or changes to outputs and registers.
  • Document compensating controls where firmware cannot be promptly updated.

Validation and detection

  • Inventory Universal Robots CB3 and e-Series controller software versions.
  • Confirm whether TCP port 30004 is reachable from adjacent network segments.
  • Review network controls limiting RTDE access to approved hosts.
  • Check logs or monitoring for unexpected RTDE client connections.
  • Verify vendor guidance has been reviewed for affected controller versions.
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

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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.

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cve · low confidence lookup

CVE-2020-10264 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

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

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
8.8CVSS 3.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2020-10264Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Products and packages named in the record

VendorProductVersion / packageStatus
Universal Robots A/SUniversal Robots Robot Controllers CB 3.1CB3 SW Versions 3.3 up to 3.12.1Listed
Universal Robots A/SUniversal Robots Robot Controllers e-Seriesnext of SW Versions 5.0 up to 5.7Listed
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.