CVE-2021-1388Network attack vector

Unauthenticated administrator token issuance via improper validation

Published Feb 24, 2021 · Updated Nov 8, 2024

Authentication bypass in Cisco Nexus Dashboard Orchestrator 3.0 allows remote attackers to obtain an administrator API token. A specific API endpoint improperly validates a crafted request and issues a token with administrator-level privileges. No credentials or user interaction is required, and the token authenticates to affected Orchestrator and managed APIC APIs.

CVSS severity10.0
Critical
EPSS probability14.85%
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 Nexus Dashboard Orchestrator 3.0 allows remote attackers to obtain an administrator API token. A specific API endpoint improperly validates a crafted request and issues a token with administrator-level privileges. No credentials or user interaction is required, and the token authenticates to affected Orchestrator and managed APIC APIs.

The record

CVE
CVE-2021-1388
Published
Feb 24, 2021
Updated
Nov 8, 2024
Vendor
ClamAV
Product
Cisco Nexus Dashboard Orchestrator
Classifications
CWE-269, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 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 Nexus Dashboard Orchestratorversion=n/a

Published CVSS scores

10.0CiscoCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1190Exploit Public-Facing Application

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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