Zoom Clients for Windows- Race Condition

published 2025-08-12 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-24528

cvss: 6.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

Race condition in the installer for certain Zoom Clients for Windows may allow an unauthenticated user to impact application integrity via local access.

Patch / fix

fixed in 5

zoom meeting_software_development_kit 6.4.10
zoom rooms 6.4.5
zoom rooms_controller 6.4.5
zoom workplace_desktop 6.4.10
zoom workplace_virtual_desktop_infrastructure 6.2.15, 6.3.12

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 14 mo ago (2025-08-13)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.2	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	3.1	5.1	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

Zoom Communications Inc Zoom Clients for Windows

Classification

Weakness

CWE-426 Untrusted Search Path
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

zoom.com /en/trust/security-bulletin/zsb-25029
vendor-advisory

Sources

CVE List CVE-2025-49456
NVD CVE-2025-49456

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