Cyber Resilience

CVE-2023-46424

RCE in Totolink X6000R Firmware 9.4.0cu.652_b20230116

Public PoCRCECommand Injection
Published
25 October 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.019 77th percentile
Risk Priority 78 floored blend · peak EPSS

Summary

CVE-2023-46424 is a critical-severity Command Injection (CWE-77) vulnerability in Totolink X6000R Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 23% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

TOTOLINK X6000R firmware version v9.4.0cu.652_B20230116 contains a remote command execution vulnerability in the sub_422BD4 function, tracked as CVE-2023-46424 and assigned CWE-77. The flaw carries a CVSS 3.1 score of 9.8, reflecting network-accessible command injection without any authentication or user interaction required.

An unauthenticated attacker can send crafted requests to the affected device and execute arbitrary operating-system commands, resulting in complete control over the router and its connected network traffic.

Public references include a detailed technical write-up on GitHub and links to TOTOLINK firmware downloads, but no explicit patch or mitigation guidance is provided in the available sources. The associated EPSS score has remained flat at 0.0505 with no material increase since disclosure.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

TOTOLINK X6000R v9.4.0cu.652_B20230116 was discovered to contain a remote command execution (RCE) vulnerability via the sub_422BD4 function.

CWE(s)
CWE-77

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.008 Network Device CLI Execution
Adversaries may abuse scripting or built-in command line interpreters (CLI) on network devices to execute malicious command and payloads.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-46409Same product: Totolink X6000R
CVE-2023-48801Same product: Totolink X6000R
CVE-2023-46417Same product: Totolink X6000R
CVE-2025-52053Same product: Totolink X6000R
CVE-2023-46485Same product: Totolink X6000R
CVE-2023-46484Same product: Totolink X6000R
CVE-2023-52042Same product: Totolink X6000R
CVE-2023-46415Same product: Totolink X6000R
CVE-2023-46416Same product: Totolink X6000R
CVE-2025-52284Same product: Totolink X6000R

Affected Assets

totolink
x6000r firmware
9.4.0cu.652_b20230116

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.3
  • V1.2.5
  • V1.2.8
  • V1.2.9

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and neutralization that prevent command injection.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data can detect anomalous command execution resulting from injection.

ID.RA-01 partial match
prevents

Identifying recorded vulnerabilities enables remediation of command-injection flaws before exploitation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches command-injection vulnerabilities before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and command construction practices that directly prevent command injection.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against injection flaws including command injection.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles reduce the attack surface but do not prescribe the specific neutralization techniques needed.

A.8.31 Separation of development, test and production environments none match
none

Environment separation limits the blast radius of an exploited command injection but does not prevent the flaw itself.

References