Medium severity · published Jul 10, 2025
CVE-2025-46789
Zoom Clients for Windows - Classic Buffer Overflow
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial of service via network access.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZC
Zoom Clients for Windows · Zoom Communications Inc.
before see references · source: vendor
ZO
Zoom · Zoom
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-46789
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-46789
Broken Link
https://https://www.zoom.com/en/trust/security-bulletin/zsb-25024/
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