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CVE Record

CVE-2021-34411: During the installation process forZoom Rooms for Conference Room for Windows before version 5.3.0 it is po...

During the installation process forZoom Rooms for Conference Room for Windows before version 5.3.0 it is possible to launch Internet Explorer with elevated privileges. If the installer was launched with elevated privileges such as by SCCM this can result in a local privilege escalation.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue affects Zoom Rooms for Conference Room for Windows before version 5.3.0. During installation, Internet Explorer could be opened with elevated privileges. If deployment tooling ran the installer as admin, a local user could potentially gain higher privileges on that Windows room system.

Executive priority

Treat this as a targeted endpoint hardening issue, not an internet-wide emergency based on available evidence. Prioritize conference room Windows systems, enterprise deployment tooling, and stale installer packages because compromise could yield local administrative impact on shared devices.

Technical view

CVE-2021-34411 is a local privilege escalation condition in the Zoom Rooms for Conference Room for Windows installer before 5.3.0. The vulnerability exists during installation and depends on the installer being launched with elevated privileges, such as through SCCM. The public bundle does not provide CVSS, CWE, or detailed patch notes.

Likely exposure

Exposure is most likely on Windows-based Zoom Rooms devices that installed versions earlier than 5.3.0, especially where enterprise software deployment ran installers with administrative privileges. Non-Windows Zoom Rooms deployments are not identified as affected in the provided sources.

Exploitation context

The provided sources do not show known active exploitation, and the CVE is not listed as KEV. Abuse appears local and installation-time dependent, requiring an elevated installer context rather than ordinary remote access.

Researcher notes

The source bundle is thin: no CVSS vector, CWE, proof-of-concept status, or detailed vendor remediation text is provided. The affected product and fixed threshold are clear from the CVE description. Avoid expanding scope beyond Zoom Rooms for Conference Room for Windows before 5.3.0.

Mitigation direction

  • Upgrade Zoom Rooms for Conference Room for Windows to version 5.3.0 or later.
  • Review Zoom's security bulletin for any current vendor guidance.
  • Limit who can run Zoom Rooms installers with administrative privileges.
  • Review SCCM or software deployment policies for elevated installer exposure.
  • Remove outdated Zoom Rooms installer packages from deployment repositories.

Validation and detection

  • Inventory Windows Zoom Rooms systems and confirm installed versions.
  • Identify any devices running Zoom Rooms earlier than version 5.3.0.
  • Review SCCM or deployment logs for elevated Zoom Rooms installations.
  • Check whether outdated installer packages remain available to users.
  • Review installation-period logs for unexpected elevated Internet Explorer launches.
Prepared
Confidence
medium
Sources
3

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. 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-2021-34411 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
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
2Source links

CVSS and timeline data

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aZoom Rooms for Conference Room for WindowsAll versions before 5.3.0Listed
Weakness

CWE details

No CWE listed

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