CVE-2025-30669

Information disclosure via improper certificate validation

Published Nov 13, 2025 · Updated Nov 13, 2025

Improper certificate validation in Zoom Workplace before 6.5.10 allows attackers to disclose information via adjacent access. Zoom has not published the affected certificate-validation locus or the incorrect trust decision made on untrusted certificate input. Exploitation requires adjacent access, high attack complexity, and user interaction, and the reported consequence is information disclosure only.

CVSS severity4.8
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Zoom Workplace before 6.5.10 allows attackers to disclose information via adjacent access. Zoom has not published the affected certificate-validation locus or the incorrect trust decision made on untrusted certificate input. Exploitation requires adjacent access, high attack complexity, and user interaction, and the reported consequence is information disclosure only.

The record

CVE
CVE-2025-30669
Published
Nov 13, 2025
Updated
Nov 13, 2025
Vendor
Zoom Video Communications, Inc.
Product
Zoom Workplace
Classifications
CWE-295, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Zoom Video Communications, Inc. · Zoom Workplaceversion=see references

Published CVSS scores

6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.8Zoom Video Communications, Inc.CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

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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