Cyber Resilience

CVE-2020-37150

Info Disclosure in Edimax Ew-7438Rpn Mini Firmware 1.27

Public PoCInfo Disclosure
Published
05 February 2026
Modified
18 February 2026
Patch / advisory
CVSS Score v4 8.7
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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 0.0071 50th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2020-37150 is a high-severity Insertion of Sensitive Information Into Sent Data (CWE-201) vulnerability in Edimax Ew-7438Rpn Mini Firmware. Its CVSS base score is 8.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 50th percentile by exploit likelihood (below the median); 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 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement) — 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-2020-37150 is a vulnerability in the Edimax EW-7438RPn-v3 Mini firmware version 1.27 that permits unauthenticated access to the /wizard_reboot.asp page when the device is in unsetup mode. This endpoint discloses the Wi-Fi SSID and security key upon a simple GET request, resulting in exposure of sensitive information without requiring authentication. The issue is classified under CWE-201 (Exposure of Sensitive Information to an Unauthorized Actor) and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), highlighting high confidentiality impact from a network-based attack with low complexity.

Unauthenticated attackers with network access to the affected device can exploit this vulnerability by sending a GET request to the /wizard_reboot.asp endpoint. No user interaction or privileges are needed, allowing remote retrieval of the wireless password and SSID, which could enable unauthorized Wi-Fi network access or serve as a foothold for broader network reconnaissance and compromise.

Reference URLs include the Edimax product page for the EW-7438RPn Mini, an Exploit-DB entry (48318) detailing the exploit, and a VulnCheck advisory on the unauthorized Wi-Fi password disclosure in Edimax EW-RPN Mini devices. These resources document the issue but do not specify patches or mitigations in the provided information. Security practitioners should review them directly and consider isolating or updating affected devices.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Edimax EW-7438RPn-v3 Mini 1.27 allows unauthenticated attackers to access the /wizard_reboot.asp page in unsetup mode, which discloses the Wi-Fi SSID and security key. Attackers can retrieve the wireless password by sending a GET request to this endpoint, exposing sensitive information…

more

without authentication.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

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.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
Why these techniques?

Direct exploitation of unauthenticated web endpoint on network device (T1190) yields Wi-Fi credentials (T1552).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2020-37097Same product: Edimax Ew-7438Rpn Mini
CVE-2020-37125Same product: Edimax Ew-7438Rpn Mini
CVE-2020-37149Same product: Edimax Ew-7438Rpn Mini
CVE-2025-34024Same product: Edimax Ew-7438Rpn Mini
CVE-2025-34029Same product: Edimax Ew-7438Rpn Mini
CVE-2026-42746Shared CWE-201
CVE-2025-22916Same vendor: Edimax
CVE-2026-1970Same vendor: Edimax
CVE-2025-22904Same vendor: Edimax
CVE-2026-39711Shared CWE-201

Affected Assets

edimax
ew-7438rpn mini firmware
1.27

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-14 Permitted Actions Without Identification or Authentication
  • AC-3 Access Enforcement
  • SI-15 Information Output Filtering
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)
  • V14.2.3

Mitigating Controls (NIST 800-53 r5) AI

prevent

AC-14 explicitly identifies and authorizes actions permitted without identification or authentication, preventing unauthenticated access to sensitive endpoints like /wizard_reboot.asp that disclose Wi-Fi credentials.

prevent

AC-3 enforces approved authorizations for logical access to system resources, blocking unauthenticated GET requests to endpoints exposing sensitive Wi-Fi SSID and security key.

prevent

SI-15 filters information output to prevent unauthorized disclosure of sensitive data such as Wi-Fi credentials in responses from unauthenticated endpoints.

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 prevent insertion of sensitive data into application outputs and messages.

DE.CM-09 partial match
prevents

Monitoring runtime data flows and outputs can detect sensitive data being transmitted.

PR.DS-02 partial match
prevents

Protecting data-in-transit can include filtering or encrypting to avoid exposing sensitive content.

PR.DS-10 partial match
prevents

Protecting data-in-use includes removing confidential values before they are processed or sent.

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

Data-masking techniques can prevent sensitive values from appearing in transmitted payloads.

mitigates

Classification identifies sensitive data so it is not inadvertently transmitted.

mitigates

Labelling makes sensitive data visible to developers and prevents accidental inclusion in outbound messages.

mitigates

Information-transfer rules directly govern what data may be sent to external parties.

mitigates

PII-protection requirements reduce the chance of sending personal data to unauthorized recipients.

mitigates

DLP controls inspect and block outbound flows that contain sensitive information.

References