CVE-2023-52040Public exploitNetwork attack vector

Unauthenticated command execution via sub_41284C shell invocation

Published Jan 24, 2024 · Updated Aug 2, 2024

Command injection in TOTOLINK X6000R firmware 9.4.0cu.852_B20230719 allows remote attackers to execute arbitrary commands. The sub_41284C function passes attacker-controlled input into a system-command execution path without adequately neutralizing command syntax; the public record does not identify the request parameter. No authentication or user interaction is required, and successful exploitation grants control over the router firmware.

CVSS severity9.8
Critical
EPSS probability0.85%
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 X6000R firmware 9.4.0cu.852_B20230719 allows remote attackers to execute arbitrary commands. The sub_41284C function passes attacker-controlled input into a system-command execution path without adequately neutralizing command syntax; the public record does not identify the request parameter. No authentication or user interaction is required, and successful exploitation grants control over the router firmware.

The record

CVE
CVE-2023-52040
Published
Jan 24, 2024
Updated
Aug 2, 2024
Vendor
TOTOLINK
Product
X6000R Firmware
Classifications
CWE-253, CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.4.0cu.852_b20230719

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · X6000R Firmwareversion=9.4.0cu.852_b20230719

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

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

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-253Incorrect Check of Function Return Value
CWE-77Improper Neutralization of Special Elements used in a Command ('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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