CVE-2023-46979Public exploitNetwork attack vector

Unauthenticated command execution via unvalidated LED setting

Published Oct 31, 2023 · Updated Sep 6, 2024

Command injection in TOTOLINK X6000R firmware 9.4.0cu.852_B20230719 allows remote attackers to execute arbitrary commands. The setLedCfg handler in shttpd passes the unvalidated enable parameter through Uci_Set_Str to CsteSystem, where shell metacharacters become part of an executed command. No authentication or user interaction is required; injected commands can read or modify device data or interrupt service.

CVSS severity9.8
Critical
EPSS probability1.52%
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 setLedCfg handler in shttpd passes the unvalidated enable parameter through Uci_Set_Str to CsteSystem, where shell metacharacters become part of an executed command. No authentication or user interaction is required; injected commands can read or modify device data or interrupt service.

The record

CVE
CVE-2023-46979
Published
Oct 31, 2023
Updated
Sep 6, 2024
Vendor
TOTOLINK
Product
X6000R Firmware
Classifications
CWE-77, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

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-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell
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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