What is CVE-2022-28756?

CVE-2022-28756 is a high-severity vulnerability in Zoom Meetings, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.8/10. Published 2022-08-15.

How severe is CVE-2022-28756?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Zoom Meetings

CVE-2022-28756

The Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with version 5.7.3 and before 5.11.5 contains a vulnerability in the auto update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root.

Published 2022-08-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Zoom Meetings
Zoom Video Communications Inc Client For Meetings macOS — versions next of 5.7.3, unspecified

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

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

Frequently asked questions

What is CVE-2022-28756?: CVE-2022-28756 is a high-severity vulnerability in Zoom Meetings, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.8/10. Published 2022-08-15.
How severe is CVE-2022-28756?: High severity. CVSS v3 base score is 8.8 out of 10.