CVE-2025-49464
Zoom Clients for Windows- Classic Buffer Overflow
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Zoom Clients for Windows- Classic Buffer Overflow
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
- Record
CVE-2025-49464- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2025-21022
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
- Record
EUVD-2025-21022- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-734g-gx24-mvm2
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to...
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
- Record
GHSA-734g-gx24-mvm2- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
- Record
CVE-2025-49464- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-49464 is a medium vulnerability (CVSS 6.5) in Zoom, published July 10, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.69%, the 53rd percentile. No source names a fixed version.