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CVE Record

CVE-2021-38142: Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades.

Barco MirrorOp Windows Sender before 2.5.3.65 uses cleartext HTTP and thus allows rogue software upgrades. An attacker on the local network can achieve remote code execution on any computer that tries to update Windows Sender due to the fact that the upgrade mechanism is not secured (is not protected with TLS).

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Barco MirrorOp Windows Sender before 2.5.3.65 could fetch software updates over unencrypted HTTP. A local-network attacker could substitute a malicious update and gain code execution on a computer attempting to update. Business urgency depends on whether this software is present on managed Windows endpoints.

Executive priority

Treat as high priority where the software exists on enterprise Windows endpoints. The issue can enable code execution, but exploitation requires local-network positioning and an update attempt, and active exploitation is not documented in the provided sources.

Technical view

The vulnerability is an insecure update mechanism in Barco MirrorOp Windows Sender before 2.5.3.65. Because update traffic is not protected with TLS, a local-network attacker can interfere with the upgrade path and cause rogue software installation, leading to remote code execution on the updating host.

Likely exposure

Exposure is likely limited to Windows systems with Barco MirrorOp Windows Sender versions earlier than 2.5.3.65, especially on shared local networks where an attacker could observe or influence update traffic.

Exploitation context

The CVE states local-network remote code execution during update attempts. The source bundle does not show KEV listing, public exploitation, exploit maturity, CVSS, or detailed vendor advisory evidence.

Researcher notes

The public bundle provides the vulnerable version boundary and root cause, but lacks CVSS, CWE, packet-level detail, and a full vendor advisory. Do not assume broader Barco product impact beyond MirrorOp Windows Sender before 2.5.3.65.

Mitigation direction

  • Inventory Windows endpoints for Barco MirrorOp Windows Sender installations.
  • Upgrade Barco MirrorOp Windows Sender to 2.5.3.65 or vendor-recommended later versions.
  • Check Barco support guidance before relying on compensating controls.
  • Restrict untrusted local-network access to systems running the software.
  • Monitor software update activity on affected endpoints.

Validation and detection

  • Confirm installed MirrorOp Windows Sender versions against the 2.5.3.65 cutoff.
  • Identify hosts that can initiate MirrorOp Sender update checks.
  • Review network segmentation for shared local-network exposure.
  • Verify remediation by confirming the installed fixed version.
  • Document any systems where upgrade is deferred.
Prepared
Confidence
medium
Sources
4

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

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ATT&CK lookup starting points

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Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-38142 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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