What is CVE-2023-39205?

CVE-2023-39205 is a medium-severity vulnerability in Zoom Meetings, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 4.3/10. Published 2023-11-14.

How severe is CVE-2023-39205?

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

Vulnerability in Zoom Meetings

CVE-2023-39205

Improper conditions check in Zoom Team Chat for Zoom clients may allow an authenticated user to conduct a denial of service 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:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% 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 Meetings
Zoom Video Software Development Kit
Zoom Virtual Desktop Infrastructure
Zoom
Zoom Video Communications, Inc. Clients — versions see references

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

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

Frequently asked questions

What is CVE-2023-39205?: CVE-2023-39205 is a medium-severity vulnerability in Zoom Meetings, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 4.3/10. Published 2023-11-14.
How severe is CVE-2023-39205?: Medium severity. CVSS v3 base score is 4.3 out of 10.