What is CVE-2025-30668?

CVE-2025-30668 is a medium-severity vulnerability in Zoom Meeting Software Development Kit, classified under Integer Underflow. CVSS score: 6.5/10. Published 2025-05-14.

How severe is CVE-2025-30668?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Integer overflow in Zoom Meeting Software Development Kit

CVE-2025-30668

Integer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct a denial of service via network access.

Published 2025-05-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Zoom Meeting Software Development Kit
Zoom Rooms
Zoom Rooms Controller
Zoom Workplace
Zoom Workplace Desktop
Zoom Workplace Virtual Desktop Infrastructure
Zoom Communications, Inc Workplace Apps — versions see references

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

www.zoom.com/en/trust/security-bulletin/zsb-25020 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-30668?: CVE-2025-30668 is a medium-severity vulnerability in Zoom Meeting Software Development Kit, classified under Integer Underflow. CVSS score: 6.5/10. Published 2025-05-14.
How severe is CVE-2025-30668?: Medium severity. CVSS v3 base score is 6.5 out of 10.