CVE-2021-22952

Device takeover via undisclosed code injection

Published Sep 23, 2021 · Updated Aug 3, 2024

Code injection in Ubiquiti UniFi Talk Application 1.12.3 and earlier allows remote attackers on the local network to control unadopted Talk devices. Ubiquiti has not disclosed the affected component, the injected input, or the operation that processes it. Exploitation requires network access and a Talk device assigned to that network but not yet adopted, after which the attacker gains control of that device.

CVSS severity8.3
High
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Ubiquiti UniFi Talk Application 1.12.3 and earlier allows remote attackers on the local network to control unadopted Talk devices. Ubiquiti has not disclosed the affected component, the injected input, or the operation that processes it. Exploitation requires network access and a Talk device assigned to that network but not yet adopted, after which the attacker gains control of that device.

The record

CVE
CVE-2021-22952
Published
Sep 23, 2021
Updated
Aug 3, 2024
Vendor
Ubiquiti Inc.
Product
UniFi Talk Application
Classifications
CWE-94
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 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 1.12.5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Ubiquiti Inc. · UniFi Talk Applicationversion=Fixed on 1.12.5

Published CVSS scores

8.3Ubiquiti Inc.CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')

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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