Cyber Resilience

CVE-2024-7464

Command Injection in Totolink Cp900 Firmware 6.3c.566

Public PoCCommand Injection
Published
05 August 2024
Modified
15 August 2024
CVSS Score v4 5.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.20 97th percentile
Risk Priority 52 floored blend · peak EPSS

Summary

CVE-2024-7464 is a medium-severity Command Injection (CWE-77) vulnerability in Totolink Cp900 Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

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

CVE-2024-7464 is a command injection vulnerability in the TOTOLINK CP900 router running firmware 6.3c.566. It resides in the setTelnetCfg function of the Telnet service, where unsanitized input to the telnet_enabled argument allows arbitrary command execution. The flaw is tracked as CWE-77 and carries a CVSS 4.0 score of 5.3 reflecting network attack vector, low complexity, and low-privileged access with limited impacts on confidentiality, integrity, and availability.

An authenticated remote attacker can supply a malicious telnet_enabled value to the affected endpoint and execute operating-system commands on the device. Public proof-of-concept code has been released, enabling straightforward exploitation without user interaction or additional privileges beyond a valid management account.

Vendor contact prior to disclosure produced no response, and the listed references contain only third-party advisories and exploit details with no official patch or mitigation guidance. The EPSS score has reached a peak of 0.4490 with a current value of 0.3837, indicating moderate and sustained exploitation interest following public release of the details.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

A vulnerability, which was classified as critical, has been found in TOTOLINK CP900 6.3c.566. This issue affects the function setTelnetCfg of the component Telnet Service. The manipulation of the argument telnet_enabled leads to command injection. The attack may be initiated…

more

remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-273557 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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-2025-44838Same product: Totolink Cp900
CVE-2025-44836Same product: Totolink Cp900
CVE-2025-44854Same product: Totolink Cp900
CVE-2025-44837Same product: Totolink Cp900
CVE-2024-7463Same product: Totolink Cp900
CVE-2023-46409Same vendor: Totolink
CVE-2023-48801Same vendor: Totolink
CVE-2024-57036Same vendor: Totolink
CVE-2023-24238Same vendor: Totolink
CVE-2024-31811Same vendor: Totolink

Affected Assets

totolink
cp900 firmware
6.3c.566

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 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover command-construction flaws before deployment.

SI-10 Information Input Validation good match

Input validation directly stops construction of commands from untrusted data containing special elements.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles include proper neutralization and safe command construction practices.

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