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VulnerabilityPublished

CVE-2026-30903: Zoom Workplace · External control of file name or path

Affects Zoom WorkplaceSource CVE Database V5

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Not known to be exploited · CVSS 9.6 Critical.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
9.6Critical
How severe the flaw is on the 0–10 CVSS scale.

Contested

Critical score, yet low EPSS after six months
EPSS
0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Zoom CommunicationsZoom WorkplaceAffected
  • =see references
Fixed in–

AI-suggested

To mitigate CVE-2026-30903, organizations should immediately upgrade Zoom Workplace for Windows to version 6.6.0 or later once available. Until patches are released, restrict network access to the Mail feature by implementing network segmentation and firewall rules that limit inbound traffic to trusted sources. Employ application whitelisting and endpoint protection solutions to detect and block suspicious file path manipulations. Monitor logs and network traffic for unusual activity related to file operations within Zoom Workplace. Educate users about the risk of interacting with unexpected or suspicious communications within the Mail feature to reduce the likelihood of user interaction exploitation. Coordinate with Zoom Communications for timely updates and advisories. Additionally, consider deploying intrusion detection systems (IDS) with signatures tailored to detect exploitation attempts targeting this vulnerability. Regularly review and update incident response plans to address potential exploitation scenarios involving privilege escalation.

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.

References

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