CVE-2023-33486Public exploitNetwork attack vector

Unauthenticated command execution via hostName shell injection

Published May 31, 2023 · Updated Jan 9, 2025

Command injection in TOTOLINK X5000R firmware 9.1.0u.6118_B20201102 and 9.1.0u.6369_B20230113 allows remote attackers to execute commands. setOpModeCfg accepts hostName in a POST to /cgi-bin/cstecgi.cgi and incorporates shell metacharacters without neutralization. A proto value other than 3, 4, or 6 reaches the vulnerable default path, and the disclosure reports command execution without authorization.

CVSS severity9.8
Critical
EPSS probability1.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in TOTOLINK X5000R firmware 9.1.0u.6118_B20201102 and 9.1.0u.6369_B20230113 allows remote attackers to execute commands. setOpModeCfg accepts hostName in a POST to /cgi-bin/cstecgi.cgi and incorporates shell metacharacters without neutralization. A proto value other than 3, 4, or 6 reaches the vulnerable default path, and the disclosure reports command execution without authorization.

The record

CVE
CVE-2023-33486
Published
May 31, 2023
Updated
Jan 9, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 2025Record 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

9.8CISA-ADPCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('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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