CVE-2021-22943Network attack vector

Unauthenticated control of assigned cameras

Published Aug 31, 2021 · Updated Aug 3, 2024

Improper authentication in Ubiquiti UniFi Protect 1.18.1 and earlier allows remote attackers on the network to control assigned cameras. The vendor identifies improper authentication but has not published the affected request, endpoint, or validation failure that accepts untrusted network input. An unauthenticated actor must first reach the Protect deployment's network; successful exploitation grants control of assigned surveillance cameras.

CVSS severity10.0
Critical
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Ubiquiti UniFi Protect 1.18.1 and earlier allows remote attackers on the network to control assigned cameras. The vendor identifies improper authentication but has not published the affected request, endpoint, or validation failure that accepts untrusted network input. An unauthenticated actor must first reach the Protect deployment's network; successful exploitation grants control of assigned surveillance cameras.

The record

CVE
CVE-2021-22943
Published
Aug 31, 2021
Updated
Aug 3, 2024
Vendor
Ubiquiti Inc.
Product
UniFi Protect
Classifications
CWE-287, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=Fixed on 1.19.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ubiquiti Inc. · UniFi Protectversion=Fixed on 1.19.0

Published CVSS scores

9.6NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
8.3NIST NVDAV:A/AC:L/Au:N/C:C/I:C/A:C
10.0Ubiquiti Inc.CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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-287Improper Authentication
T1210Exploitation of Remote Services

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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