CVE-2023-52031Public exploitNetwork attack vector

Unauthenticated command execution via UploadFirmwareFile

Published Jan 11, 2024 · Updated Jun 3, 2025

Command injection in TOTOlink A3700R firmware 9.1.2u.5822_B20200513 allows remote attackers to execute commands via UploadFirmwareFile. The public record identifies UploadFirmwareFile as the vulnerable function but does not disclose which input reaches a command interpreter or how validation fails. No authentication or user interaction is required, and successful exploitation compromises the device's confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability1.54%
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 A3700R firmware 9.1.2u.5822_B20200513 allows remote attackers to execute commands via UploadFirmwareFile. The public record identifies UploadFirmwareFile as the vulnerable function but does not disclose which input reaches a command interpreter or how validation fails. No authentication or user interaction is required, and successful exploitation compromises the device's confidentiality, integrity, and availability.

The record

CVE
CVE-2023-52031
Published
Jan 11, 2024
Updated
Jun 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 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
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 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

T1190Exploit Public-Facing Application

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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