CVE-2025-27443

Authenticated local integrity loss

Published Apr 8, 2025 · Updated Apr 8, 2025

Insecure default initialization in Zoom Workplace Apps for Windows allows local users to alter application data through local access. Zoom has not published the affected variable or component, or the incorrect initialization operation that makes the integrity change possible. Exploitation requires low local privileges and user interaction; the vendor assessment limits the reported consequence to integrity loss.

CVSS severity2.8
Low
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure default initialization in Zoom Workplace Apps for Windows allows local users to alter application data through local access. Zoom has not published the affected variable or component, or the incorrect initialization operation that makes the integrity change possible. Exploitation requires low local privileges and user interaction; the vendor assessment limits the reported consequence to integrity loss.

The record

CVE
CVE-2025-27443
Published
Apr 8, 2025
Updated
Apr 8, 2025
Vendor
Zoom Video Communications, Inc.
Product
Zoom Workplace Apps
Classifications
CWE-1188
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 privilegesauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Workplace Appsversion=See references.

Published CVSS scores

2.8Zoom CommunicationsCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1188Insecure Default Initialization of Resource

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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