CVE-2022-38828Public exploitNetwork attack vector

Unauthenticated command execution via unsanitized WPS PIN

Published Sep 16, 2022 · Updated Aug 3, 2024

OS command injection in TOTOLINK T6 firmware 4.1.5cu.709_B20210518 allows remote attackers to execute commands via cstecgi.cgi. The setting/setWiFiWpsStart handler passes the attacker-controlled pin field through sub_421AA0 into system() without neutralizing shell metacharacters. No authentication data is present in the published request, and successful exploitation runs arbitrary operating-system commands with the CGI process's privileges.

CVSS severity9.8
Critical
EPSS probability19.67%
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 T6 firmware 4.1.5cu.709_B20210518 allows remote attackers to execute commands via cstecgi.cgi. The setting/setWiFiWpsStart handler passes the attacker-controlled pin field through sub_421AA0 into system() without neutralizing shell metacharacters. No authentication data is present in the published request, and successful exploitation runs arbitrary operating-system commands with the CGI process's privileges.

The record

CVE
CVE-2022-38828
Published
Sep 16, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 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 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

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 exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

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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