CVE-2021-1468Network attack vector

Unauthenticated administrative account creation via missing messaging checks

Published May 6, 2021 · Updated Nov 8, 2024

Authentication bypass in Cisco Catalyst SD-WAN Manager cluster mode allows remote attackers to create administrative accounts. The application messaging service accepts crafted user-supplied input without proper authentication checks, enabling calls to privileged actions. Exposure requires cluster mode; successful exploitation can create new administrative-level users and invoke other privileged system actions.

CVSS severity9.8
Critical
EPSS probability2.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Cisco Catalyst SD-WAN Manager cluster mode allows remote attackers to create administrative accounts. The application messaging service accepts crafted user-supplied input without proper authentication checks, enabling calls to privileged actions. Exposure requires cluster mode; successful exploitation can create new administrative-level users and invoke other privileged system actions.

The record

CVE
CVE-2021-1468
Published
May 6, 2021
Updated
Nov 8, 2024
Vendor
ClamAV
Product
Cisco Catalyst SD-WAN Manager
Classifications
CWE-20, T1136.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 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 privilegesunauthenticated

What is affected?

ClamAV · Cisco Catalyst SD-WAN Managerversion=n/a

Published CVSS scores

9.8CiscoCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1136.001Create Account: Local Account

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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