What is CVE-2023-22883?

CVE-2023-22883 is a high-severity vulnerability in Zoom Meetings, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.2/10. Published 2023-03-16.

How severe is CVE-2023-22883?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Zoom Meetings

CVE-2023-22883

Zoom Client for IT Admin Windows installers before version 5.13.5 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability in an attack chain during the installation process to escalate their privileges to the SYSTEM user.

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

Published 2023-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% 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 It Admin Windows Installers — versions unspecified

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

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

Frequently asked questions

What is CVE-2023-22883?: CVE-2023-22883 is a high-severity vulnerability in Zoom Meetings, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.2/10. Published 2023-03-16.
How severe is CVE-2023-22883?: High severity. CVSS v3 base score is 7.2 out of 10.