CVE-2021-46422Known exploitationPublic exploitNetwork attack vector

Unauthenticated command execution via unsanitized Cmd parameter

Published Apr 27, 2022 · Updated Aug 4, 2024

OS command injection in Telesquare SDT-CW3B1 1.1.0 allows remote attackers to execute arbitrary operating system commands over HTTP. The /cgi-bin/admin.cgi interface passes the unsanitized Cmd query parameter to the device's system-command handler and returns command output in CmdResult. No authentication or user interaction is required, allowing commands to run with the web interface's device privileges.

CVSS severity9.8
Critical
EPSS probability94.34%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Telesquare SDT-CW3B1 1.1.0 allows remote attackers to execute arbitrary operating system commands over HTTP. The /cgi-bin/admin.cgi interface passes the unsanitized Cmd query parameter to the device's system-command handler and returns command output in CmdResult. No authentication or user interaction is required, allowing commands to run with the web interface's device privileges.

The record

CVE
CVE-2021-46422
Published
Apr 27, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1190, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 2023Exploitation reportedUnit 42 Mirai variant exploitation traffic
  3. 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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