CVE-2020-3182

Device information disclosure via sensitive mDNS replies

Published Mar 4, 2020 · Updated Nov 15, 2024

Information disclosure in Cisco Webex Meetings Client for MacOS 40.1.8.5 and earlier allows attackers to obtain device details via mDNS. The client's mDNS configuration inserts sensitive device information into replies to queries for a particular service instead of withholding it from unauthorized requesters. Exploitation requires network adjacency but no authentication or user interaction, and the documented consequence is disclosure of sensitive device information.

CVSS severity4.3
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Cisco Webex Meetings Client for MacOS 40.1.8.5 and earlier allows attackers to obtain device details via mDNS. The client's mDNS configuration inserts sensitive device information into replies to queries for a particular service instead of withholding it from unauthorized requesters. Exploitation requires network adjacency but no authentication or user interaction, and the documented consequence is disclosure of sensitive device information.

The record

CVE
CVE-2020-3182
Published
Mar 4, 2020
Updated
Nov 15, 2024
Vendor
ClamAV
Product
Webex Meetings
Classifications
CWE-200, T1046
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2020CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 2024Record 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=unspecified <n/a

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

ClamAV · Webex Meetingsversion=unspecified <n/a

Published CVSS scores

3.3NIST NVDAV:A/AC:L/Au:N/C:P/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.3Cisco Systems, Inc.CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1046Network Service Scanning

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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