Windows EUVD-2025-21011

| CVE-2025-46789 MEDIUM

Classic Buffer Overflow (CWE-120)

2025-07-10 security@zoom.us

Windows Buffer Overflow Denial Of Service Zoom Microsoft

6.5

CVSS 3.1 · NVD

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Severity by source

NVD PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

3

EUVD ID Assigned

Mar 16, 2026 - 06:52 euvd

EUVD-2025-21011

Analysis Generated

Mar 16, 2026 - 06:52 vuln.today

CVE Published

Jul 10, 2025 - 16:15 nvd

MEDIUM 6.5

DescriptionCVE.org

Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial of service via network access.

Analysis

Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial of service via network access.

Technical ContextAI

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Classic Buffer Overflow (CWE-120).

RemediationAI

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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Same weakness CWE-120 – Classic Buffer Overflow

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Same technique Buffer Overflow

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EUVD-2025-21011 vulnerability details – vuln.today

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