What is CVE-2023-39203?

CVE-2023-39203 is a medium-severity vulnerability in Zoom Virtual Desktop Infrastructure, classified under CWE-789. CVSS score: 4.3/10. Published 2023-11-14.

How severe is CVE-2023-39203?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Zoom Virtual Desktop Infrastructure

CVE-2023-39203

Uncontrolled resource consumption in Zoom Team Chat for Zoom Desktop Client for Windows and Zoom VDI Client may allow an unauthenticated user to conduct a disclosure of information via network access.

Published 2023-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.009 (59.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Zoom Virtual Desktop Infrastructure
Zoom
Zoom Video Communications, Inc. Rooms Client For Windows And Vdi — versions see references

Weakness classification (CWE)

CWE-789

References

explore.zoom.us/en/trust/security/security-bulletin/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-39203?: CVE-2023-39203 is a medium-severity vulnerability in Zoom Virtual Desktop Infrastructure, classified under CWE-789. CVSS score: 4.3/10. Published 2023-11-14.
How severe is CVE-2023-39203?: Medium severity. CVSS v3 base score is 4.3 out of 10.