CVE-2022-38534Public exploitNetwork attack vector

Authenticated command execution via diagnostic IP input

Published Sep 15, 2022 · Updated Aug 3, 2024

OS command injection in TOTOLINK A720R firmware 4.1.5cu.374 allows remote authenticated users to execute commands through a diagnostic request. The setDiagnosisCfg handler passes the JSON ip value into a shell command without neutralizing shell metacharacters, so a crafted value such as $(CMD) is evaluated by the firmware shell. Administrator access to the web interface is required; successful exploitation runs arbitrary commands on the router with the handler's privileges.

CVSS severity7.2
High
EPSS probability2.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in TOTOLINK A720R firmware 4.1.5cu.374 allows remote authenticated users to execute commands through a diagnostic request. The setDiagnosisCfg handler passes the JSON ip value into a shell command without neutralizing shell metacharacters, so a crafted value such as $(CMD) is evaluated by the firmware shell. Administrator access to the web interface is required; successful exploitation runs arbitrary commands on the router with the handler's privileges.

The record

CVE
CVE-2022-38534
Published
Sep 15, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 15, 2022CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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

Technologies

Your stack

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Your stack

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