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CVE-2026-30903

Zoom Workplace Virtual Desktop Infrastructure path traversal

9.6 CRITICALEPSS 0.46%
  1. Published11 Mar 2026

Description

External Control of File Name or Path in the Mail feature of Zoom Workplace for Windows before 6.6.0 may allow an unauthenticated user to conduct an escalation of privilege via network access.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

Zoom Workplace Desktop< 6.6.0
Zoom Workplace Virtual Desktop Infrastructure≥ 6.4.0 < 6.4.17 · ≥ 6.5.0 < 6.5.15 · ≥ 6.6.0 < 6.6.10

Remediation

Fixed in
Zoom Workplace Desktop≥ 6.6.0
Zoom Workplace Virtual Desktop Infrastructure≥ 6.4.17

References

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Frequently asked

Is CVE-2026-30903 being actively exploited?

CVE-2026-30903 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.46%.

How severe is CVE-2026-30903?

CVE-2026-30903 has a CVSS 3.1 base score of 9.6, rated critical. EPSS estimates a 0.46% probability of exploitation.

Which products are affected by CVE-2026-30903?

Affected products include Zoom Workplace Desktop, Zoom Workplace Virtual Desktop Infrastructure.

How do I fix CVE-2026-30903?

Upgrade affected software to a fixed version, for example Zoom Workplace Desktop 6.6.0, Zoom Workplace Virtual Desktop Infrastructure 6.4.17 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-30903 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.