CVE-2025-49456

Local application integrity compromise

Published Aug 12, 2025 · Updated Aug 13, 2025

Race condition in the installer for Zoom Clients for Windows allows local users to compromise application integrity during installation. Zoom identifies an untrusted search path but has not disclosed the specific installer operation or the untrusted input involved in the race. Local access with no privileges or user interaction is sufficient; no confidentiality or availability impact is reported.

CVSS severity6.2
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the installer for Zoom Clients for Windows allows local users to compromise application integrity during installation. Zoom identifies an untrusted search path but has not disclosed the specific installer operation or the untrusted input involved in the race. Local access with no privileges or user interaction is sufficient; no confidentiality or availability impact is reported.

The record

CVE
CVE-2025-49456
Published
Aug 12, 2025
Updated
Aug 13, 2025
Vendor
Zoom Video Communications, Inc.
Product
Zoom Clients for Windows
Classifications
CWE-426
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=see references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Clients for Windowsversion=see references

Published CVSS scores

6.2ZoomCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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