Improper neutralization of special elements in Zoom Desktop Client for Windows and Zoom VDI Client before 5.15.2 may allow an unauthenticat…

published 2023-08-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-42947

cvss: 9.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits: 0; none known

Improper neutralization of special elements in Zoom Desktop Client for Windows and Zoom VDI Client before 5.15.2 may allow an unauthenticated user to enable an escalation of privilege via network access.

Patch / fix

fixed in 2

zoom virtual_desktop_infrastructure 5.15.2
zoom zoom 5.15.2

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-10-10)

Exploit prediction

1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Zoom Video Communications, Inc. Zoom Desktop Client for Windows and Zoom VDI Client

Classification

Weakness

CWE-176 Improper Handling of Unicode Encoding
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

explore.zoom.us /en/trust/security/security-bulletin/
vendor-advisory

Sources

CVE List CVE-2023-39213
NVD CVE-2023-39213

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary