Medium severity · published Sep 9, 2025
CVE-2025-49458
Zoom Workplace Clients - Buffer Overflow
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
Buffer overflow in certain Zoom Workplace Clients may allow an authenticated 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)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZW
Zoom Workplace Clients · Zoom Communications, Inc
see references · source: vendor
MS
Meeting Software Development Kit · Zoom
before 6.5.0; before 6.5.0; before 6.5.0 · source: NVD
RO
Rooms · Zoom
before 6.5.0; before 6.5.0; before 6.5.0 · source: NVD
RC
Rooms Controller · Zoom
before 6.5.0; before 6.5.0; before 6.5.0 · source: NVD
WD
Workplace Desktop · Zoom
before 6.5.0; before 6.5.0; before 6.5.0 · source: NVD
WV
Workplace Virtual Desktop Infrastructure · Zoom
before 6.3.14; 6.4.0 before 6.4.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-49458
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-49458
Vendor Advisory
https://www.zoom.com/en/trust/security-bulletin/ZSB-25031
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