Security readout for executives and security teams
Plain-English summary
This issue exposes the administrator password in plaintext on the device’s web management password page. Because the management interface uses HTTP, someone who can view the traffic could capture the password and take over the repeater. The public record names Acexy Wireless-N WiFi Repeater REV 1.0 firmware 28.08.06.1.
Executive priority
Treat this as a network-edge device credential exposure issue. It is not documented as actively exploited, but compromise could let an attacker administer the repeater and affect network trust. Prioritize if these devices are in business environments, guest networks, or reachable by untrusted users.
Technical view
CVE-2021-28937 affects /password.html in the Acexy Wireless-N WiFi Repeater REV 1.0 web management interface. The page contains the administrator account password in plaintext, and the password can be intercepted over HTTP. The source bundle does not provide CVSS, CWE, patch information, or broader affected version data.
Likely exposure
Exposure is most likely where this repeater’s HTTP management interface is reachable from untrusted users or networks. Risk also exists on local networks where attackers can intercept HTTP traffic. No source states internet-wide exposure or affected products beyond the named device and firmware.
Exploitation context
The source describes a confidentiality failure involving plaintext admin credentials and HTTP interception. It does not state active exploitation, and the CVE is not listed as KEV in the provided bundle. Practical risk depends on network proximity, management interface exposure, and whether administrators reused the device password elsewhere.
Researcher notes
Evidence is limited to the CVE record and referenced disclosure. The affected scope appears narrow: Acexy Wireless-N WiFi Repeater REV 1.0 firmware 28.08.06.1. No official patch, CVSS score, CWE, exploit status, or expanded product matrix is provided in the source bundle.
Mitigation direction
- Check the vendor or maintainer for firmware updates or official guidance.
- Restrict the web management interface to trusted administrative networks only.
- Do not expose the repeater management interface to the internet.
- Change the administrator password after applying any vendor-recommended remediation.
- Avoid reusing the repeater administrator password on other systems.
Validation and detection
- Inventory Acexy Wireless-N WiFi Repeater REV 1.0 devices and firmware versions.
- Determine whether firmware 28.08.06.1 is present.
- Confirm the management interface is not reachable from untrusted networks.
- Review whether administrative access occurs over HTTP.
- Check vendor guidance for corrected firmware or compensating controls.
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.
Credential 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-2021-28937 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
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
- https://blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2990CVE reference, mitre
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.