CVE-2021-34786Network attack vector

Account deletion via improper authorization checks

Published Sep 9, 2021 · Updated Nov 7, 2024

Improper authorization in Cisco BroadWorks CommPilot Application Software allows remote authenticated users to delete arbitrary user accounts. The web-based management interface accepts crafted account-operation requests without enforcing the authorization assigned to the caller's role. A read-only system administrator account and configured web access control are required, and exploitation removes the selected account.

CVSS severity4.9
Medium
EPSS probability1.02%
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 BroadWorks CommPilot Application Software allows remote authenticated users to delete arbitrary user accounts. The web-based management interface accepts crafted account-operation requests without enforcing the authorization assigned to the caller's role. A read-only system administrator account and configured web access control are required, and exploitation removes the selected account.

The record

CVE
CVE-2021-34786
Published
Sep 9, 2021
Updated
Nov 7, 2024
Vendor
ClamAV
Product
Cisco BroadWorks
Classifications
CWE-620, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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 · Cisco BroadWorksversion=n/a

Published CVSS scores

4.9CiscoCVSS:3.1/AV:N/AC:L/PR:H/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-620Unverified Password Change
T1531Account Access Removal

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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