CVE-2021-1143Network attack vector

Authenticated user enumeration via missing API authorization

Published Jan 13, 2021 · Updated Nov 12, 2024

Incorrect authorization in the Cisco Connected Mobile Experiences 10.6.0 through 10.6.2 API allows remote authenticated users to enumerate users. The affected API processes certain GET requests without enforcing the authorization checks required for the requesting account. Low-privileged CMX credentials are sufficient to expose usernames for reconnaissance without altering data or service availability.

CVSS severity4.3
Medium
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in the Cisco Connected Mobile Experiences 10.6.0 through 10.6.2 API allows remote authenticated users to enumerate users. The affected API processes certain GET requests without enforcing the authorization checks required for the requesting account. Low-privileged CMX credentials are sufficient to expose usernames for reconnaissance without altering data or service availability.

The record

CVE
CVE-2021-1143
Published
Jan 13, 2021
Updated
Nov 12, 2024
Vendor
ClamAV
Product
Cisco Connected Mobile Experiences
Classifications
CWE-863, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 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 Connected Mobile Experiencesversion=n/a

Published CVSS scores

4.3CiscoCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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-863Incorrect Authorization
T1087Account Discovery

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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