Security readout for executives and security teams
Plain-English summary
This is a high-severity buffer overflow reported in Edimax BR-6476AC firmware 1.06. An attacker on an adjacent network could potentially compromise confidentiality, integrity, and availability without credentials or user interaction. The source bundle does not confirm active exploitation or a vendor fix.
Executive priority
Prioritize remediation for offices or networks where guests, tenants, or unmanaged devices share Wi-Fi or LAN access with affected routers. Business urgency is high if these routers protect sensitive networks or provide core connectivity.
Technical view
CVE-2024-48420 is a CWE-120 buffer overflow affecting /goform/getWifiBasic on Edimax AC1200 Wi-Fi 5 Dual-Band Router BR-6476AC 1.06. CVSS 3.1 is 8.8 with adjacent-network access, low complexity, no privileges, no user interaction, unchanged scope, and high CIA impact.
Likely exposure
Likely exposure is limited to environments running Edimax BR-6476AC firmware 1.06 where untrusted adjacent-network users can reach the router web interface. The provided CVE affected-products metadata is incomplete, so broader model or firmware impact should not be assumed.
Exploitation context
The bundle cites a public researcher advisory, but does not provide evidence of exploitation in the wild. The CVE is not marked as CISA KEV. Treat the issue as serious because the CVSS vector indicates unauthenticated adjacent-network exploitation potential.
Researcher notes
Evidence is sparse. The CVE description identifies the endpoint and firmware version, but the structured affected-product fields are n/a. No patch, exploit maturity, or affected-version range is confirmed in the supplied sources.
Mitigation direction
- Check Edimax guidance for fixed firmware or official mitigation.
- Upgrade affected BR-6476AC firmware if a vendor fix exists.
- Restrict router management access to trusted administrative networks.
- Block untrusted Wi-Fi or LAN clients from management endpoints.
- Retire or replace devices if no supported fix is available.
Validation and detection
- Inventory Edimax BR-6476AC devices and record firmware versions.
- Confirm whether firmware 1.06 is present in production.
- Verify management interfaces are inaccessible from untrusted adjacent networks.
- Review Edimax and CVE sources for patch or mitigation updates.
- Monitor router logs for crashes, reboots, or unexpected configuration changes.
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-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCVE-2024-48420 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
1 official scoreWe 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:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.