Cyber Resilience

CVE-2025-34029

RCE in Edimax Ew-7438Rpn Mini Firmware ≤ 1.13

Published
20 June 2025
Modified
17 June 2026
Patch / advisory
CVSS Score v4 9.4
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:H/SI:H/SA:H/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 0.035 88th percentile
Risk Priority 47 floored blend · peak EPSS

Summary

CVE-2025-34029 is a critical-severity OS Command Injection (CWE-78) vulnerability in Edimax Ew-7438Rpn Mini Firmware. Its CVSS base score is 9.4 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 12% 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.

An OS command injection vulnerability exists in the Edimax EW-7438RPn Mini firmware version 1.13 and prior. The flaw resides in the syscmd.asp form handler at the /goform/formSysCmd endpoint, where the sysCmd parameter accepts unsanitized input that is passed directly to the underlying system shell, enabling execution as the root user. The issue is tracked as CWE-78 and carries a CVSS 4.0 score of 9.4.

A remote authenticated attacker can supply arbitrary shell commands through the sysCmd parameter to achieve full command execution on the device. Successful exploitation grants the attacker root-level control over the affected range extender, allowing arbitrary system modification, data access, or further lateral movement within the network. Evidence of real-world exploitation attempts against this vulnerability was recorded by the Shadowserver Foundation on 2024-09-14 UTC.

The provided references include a VulnCheck advisory, an Exploit-DB entry, a Broadcom attack signature, and the vendor product page, but contain no explicit statements on patches or mitigation steps. The associated EPSS score remains flat at 0.0535 with no material increase observed after disclosure.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An OS command injection vulnerability exists in the Edimax EW-7438RPn Mini firmware version 1.13 and prior via the syscmd.asp form handler. The /goform/formSysCmd endpoint exposes a system command interface through the sysCmd parameter. A remote authenticated attacker can submit arbitrary…

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shell commands directly, resulting in command execution as the root user. Exploitation evidence was observed by the Shadowserver Foundation on 2024-09-14 UTC.

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.
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
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.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2020-37125Same product: Edimax Ew-7438Rpn Mini
CVE-2025-34024Same product: Edimax Ew-7438Rpn Mini
CVE-2020-37149Same product: Edimax Ew-7438Rpn Mini
CVE-2020-37150Same product: Edimax Ew-7438Rpn Mini
CVE-2025-1316Same vendor: Edimax
CVE-2020-37097Same product: Edimax Ew-7438Rpn Mini
CVE-2025-14093Same vendor: Edimax
CVE-2025-14092Same vendor: Edimax
CVE-2025-14094Same vendor: Edimax
CVE-2024-0292Shared CWE-78

Affected Assets

edimax
ew-7438rpn mini firmware
≤ 1.13

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)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

Secure engineering principles require proper neutralization of untrusted input before command construction.

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

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).

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.

finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References