Cyber Resilience

CVE-2026-7160

RCE in Tenda Hg3 Firmware 300003070

Published
27 April 2026
Modified
30 April 2026
Patch / advisory
CVSS Score v4 7.4
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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 0.033 87th percentile
Risk Priority 42 floored blend · peak EPSS

Summary

CVE-2026-7160 is a high-severity Injection (CWE-74) vulnerability in Tenda Hg3 Firmware. Its CVSS base score is 7.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 13% 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.

A vulnerability has been identified in Tenda HG3 2.0 within the formTracert function of the /boaform/formTracert file. Manipulation of the datasize argument allows command injection, classified under CWE-74 and CWE-77. The issue is remotely exploitable with a CVSS 4.0 score of 7.4 reflecting network attack vector, low complexity, and high impact on confidentiality, integrity, and availability.

An authenticated remote attacker can supply crafted input to the affected parameter and execute arbitrary commands on the device. Publicly disclosed exploit code is available, enabling potential full compromise of the affected router without user interaction.

The EPSS score remains low and unchanged at 0.0120 with no material rise observed. Reference sources point to vulnerability databases and the vendor site but contain no details on patches or specific mitigation steps.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A vulnerability was determined in Tenda HG3 2.0. This vulnerability affects the function formTracert of the file /boaform/formTracert. Executing a manipulation of the argument datasize can lead to command injection. The attack may be performed from remote. The exploit has…

more

been publicly disclosed and may be utilized.

CWE(s)

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.
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.
T1221 Template Injection Stealth
Adversaries may create or modify references in user document templates to conceal malicious code or force authentication attempts.
T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
T1674 Input Injection Execution
Adversaries may simulate keystrokes on a victim’s computer by various means to perform any type of action on behalf of the user, such as launching the command interpreter using keyboard shortcuts, typing an inline script to be executed,…
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-7096Same product: Tenda Hg3
CVE-2026-7119Same product: Tenda Hg3
CVE-2025-7415Same vendor: Tenda
CVE-2025-9090Same vendor: Tenda
CVE-2026-5339Same vendor: Tenda
CVE-2026-1689Same vendor: Tenda
CVE-2026-0581Same vendor: Tenda
CVE-2026-7469Same vendor: Tenda
CVE-2025-15048Same vendor: Tenda
CVE-2025-5836Same vendor: Tenda

Affected Assets

tenda
hg3 firmware
300003070

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)
  • V1.2.1
  • V1.2.3
  • V1.2.5
  • V1.2.8

Mitigating Controls (NIST 800-53 r5) AI

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

SI-10 directly requires validation of information inputs to reject malformed or special-element content before it reaches downstream parsers.

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 output encoding that prevent injection flaws.

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.

prevents

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

finds

Security testing in development catches injection vulnerabilities before release.

A.8.15 Logging partial match
finds

Logging supports detection of injection attempts but does not prevent the weakness.

finds

Monitoring activities can identify active injection attacks after they occur.

prevents

Secure development life cycle mandates input validation and output encoding that directly prevent injection flaws.

prevents

Application security requirements explicitly call for controls against injection attacks in software design.

References