CVE-2021-1467Network attack vector

Authenticated avatar modification via improper authorization checks

Published Apr 8, 2021 · Updated Nov 8, 2024

Improper authorization in Cisco Webex Meetings for Android before 41.3 allows remote authenticated users to modify another user's avatar. The affected request path accepts a crafted avatar-change request without verifying that the meeting participant controls the targeted user's avatar. Both users must participate in the same meeting, and the documented consequence is limited to an unauthorized avatar change rather than broader account control.

CVSS severity4.3
Medium
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Cisco Webex Meetings for Android before 41.3 allows remote authenticated users to modify another user's avatar. The affected request path accepts a crafted avatar-change request without verifying that the meeting participant controls the targeted user's avatar. Both users must participate in the same meeting, and the documented consequence is limited to an unauthorized avatar change rather than broader account control.

The record

CVE
CVE-2021-1467
Published
Apr 8, 2021
Updated
Nov 8, 2024
Vendor
ClamAV
Product
Webex Meetings
Classifications
CWE-284
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 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=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Webex Meetingsversion=n/a

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
4.3Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

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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