CVE-2023-46574Public exploitNetwork attack vector

Arbitrary code execution via firmware filename injection

Published Oct 24, 2023 · Updated Sep 11, 2024

Command injection in TOTOLINK A3700R Firmware 9.1.2u.6165_20211012 allows remote attackers to execute arbitrary code via a crafted FileName value. The UploadFirmwareFile handler fails to neutralize shell metacharacters in FileName before invoking a command, so a semicolon-delimited value runs an injected shell command. The published request targets /cgi-bin/cstecgi.cgi and includes a management-session cookie; successful exploitation grants command execution with the router service's privileges.

CVSS severity9.8
Critical
EPSS probability65.41%
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 A3700R Firmware 9.1.2u.6165_20211012 allows remote attackers to execute arbitrary code via a crafted FileName value. The UploadFirmwareFile handler fails to neutralize shell metacharacters in FileName before invoking a command, so a semicolon-delimited value runs an injected shell command. The published request targets /cgi-bin/cstecgi.cgi and includes a management-session cookie; successful exploitation grants command execution with the router service's privileges.

The record

CVE
CVE-2023-46574
Published
Oct 24, 2023
Updated
Sep 11, 2024
Vendor
TOTOLINK
Product
TOTOLINK A3700R Firmware
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 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?

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

  1. Affected versionversion=9.1.2u.6165_20211012

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · TOTOLINK A3700R Firmwareversion=9.1.2u.6165_20211012

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.

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

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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