CVE-2022-37843Network attack vector

Unauthenticated command execution via unfiltered CGI parameters

Published Sep 6, 2022 · Updated Aug 3, 2024

OS command injection in TOTOLINK A860R firmware 4.1.2cu.5182_B20201027 allows remote attackers to execute arbitrary commands over the network. The cstecgi.cgi handler passes acquired parameters directly to system execution without filtering. No privileges or user interaction are required, and successful exploitation grants command execution with the CGI process's device permissions.

CVSS severity9.8
Critical
EPSS probability1.72%
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 A860R firmware 4.1.2cu.5182_B20201027 allows remote attackers to execute arbitrary commands over the network. The cstecgi.cgi handler passes acquired parameters directly to system execution without filtering. No privileges or user interaction are required, and successful exploitation grants command execution with the CGI process's device permissions.

The record

CVE
CVE-2022-37843
Published
Sep 6, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 6, 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

9.8NVDCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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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