CVE-2021-43442Network attack vector

Unauthenticated administrator creation via UserPermission manipulation

Published Apr 11, 2022 · Updated Aug 4, 2024

Authentication bypass in affected i3 International Annexxus cameras allows remote attackers to create a second administrator account. The UserPermission endpoint accepts manipulated PUT and DELETE parameters that change a newly created account's userType to admin despite the one-administrator limit. No authentication or user interaction is required; the resulting account retains administrative access to the camera.

CVSS severity8.1
High
EPSS probability1.01%
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 affected i3 International Annexxus cameras allows remote attackers to create a second administrator account. The UserPermission endpoint accepts manipulated PUT and DELETE parameters that change a newly created account's userType to admin despite the one-administrator limit. No authentication or user interaction is required; the resulting account retains administrative access to the camera.

The record

CVE
CVE-2021-43442
Published
Apr 11, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1136.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.1NIST NVDCVSS:3.1/AV:N/AC:H/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

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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