Security readout for executives and security teams
Plain-English summary
This flaw can expose the Wi-Fi network name and password from affected Edimax EW-7438RPn Mini range extenders without login when the device is in unsetup mode. A leaked wireless key can let an attacker join the network if they are within wireless range or otherwise able to use the credential.
Executive priority
Prioritize remediation for any affected device on networks protecting business systems. The issue is simple to trigger, requires no authentication, and can expose Wi-Fi credentials. If no vendor fix is available, replacement or isolation should be considered.
Technical view
CVE-2020-37150 is a CWE-201 information disclosure issue affecting Edimax EW-7438RPn Mini firmware versions 1.23 and 1.27. Sources describe unauthenticated network access to a reboot wizard page in unsetup mode that reveals the SSID and security key. CVSS 4.0 score is 8.7.
Likely exposure
Exposure is most likely where affected extenders are still deployed, reachable over the network, and left in or returned to unsetup mode. Business risk is higher on flat office networks, guest-accessible segments, shared sites, or locations where Wi-Fi credentials protect sensitive internal access.
Exploitation context
The source bundle includes an ExploitDB reference, so public exploit information exists. The bundle marks KEV as false and provides no evidence of active exploitation. Treat this as a practical disclosure risk, not as confirmed in-the-wild exploitation.
Researcher notes
Evidence is limited to the CVE details, VulnCheck advisory, product reference, and ExploitDB entry. The affected condition is specifically unsetup mode. Do not assume broader Edimax product impact, patched status, or active exploitation without additional vendor or threat-intelligence confirmation.
Mitigation direction
- Inventory Edimax EW-7438RPn Mini devices and firmware versions.
- Check Edimax guidance for supported firmware or replacement options.
- Ensure affected devices are not left in unsetup mode.
- Restrict management access to trusted administrative networks only.
- Rotate Wi-Fi keys if disclosure is suspected or confirmed.
Validation and detection
- Confirm whether firmware 1.23 or 1.27 is deployed.
- Verify whether any device is in unsetup mode.
- Review network reachability to the extender management interface.
- Check logs or monitoring for unexpected access to the affected page.
- Confirm Wi-Fi key rotation after any suspected exposure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-201: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-37150 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48318CVE reference, VulnCheck · exploit
- Edimax EW-7438RPn Mini Product PageCVE reference, VulnCheck · product
- VulnCheck Advisory: Edimax Technology EW-7438RPn-v3 Mini 1.27 - Unauthorized Access: Wi-Fi Password DisclosureCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insertion of Sensitive Information Into Sent Data
Insertion of Sensitive Information Into Sent Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.