Security readout for executives and security teams
Plain-English summary
CVE-2026-10165 is a critical buffer overflow in Edimax BR-6478AC firmware 1.23. A remote authenticated attacker could potentially crash or fully compromise the router. Public exploit material is referenced, but the provided sources do not show confirmed active exploitation or a vendor fix.
Executive priority
Prioritize this for rapid inventory and exposure reduction. Routers often sit at network edges, and compromise can affect traffic control and availability. Urgency is high, but remediation should be based on confirmed Edimax guidance or compensating controls if no fix is available.
Technical view
The issue affects the POST request handler function formWanTcpipSetup in /goform/formWanTcpipSetup. Manipulation of the pppUserName argument can trigger a stack-based buffer overflow. VulDB scores it CVSS v2 9.0 with network attack vector, low complexity, required authentication, and complete confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where Edimax BR-6478AC firmware 1.23 management interfaces are reachable by untrusted networks or weakly protected accounts. The CVSS vector requires authentication, so credential exposure, shared admin passwords, or broad internal access materially increase risk.
Exploitation context
The source bundle says an exploit is publicly available and might be used. KEV status is false, and no provided source confirms active exploitation in the wild. Treat this as urgent because public proof-of-concept material can shorten attacker development time.
Researcher notes
Evidence is mainly VulDB/CVE source material. The record identifies CWE-119 and CWE-121, the affected handler, argument, firmware version, and public exploit reference. Patch status is not documented in the provided bundle. Authentication is required per CVSS, which should shape validation and risk ranking.
Mitigation direction
- Inventory Edimax BR-6478AC devices and confirm firmware versions.
- Check Edimax guidance for fixed firmware or official mitigation.
- Restrict router administration to trusted management networks only.
- Disable remote administration where it is not operationally required.
- Replace or isolate affected devices if no supported fix exists.
- Review router admin credentials and rotate shared or weak passwords.
Validation and detection
- Confirm whether any BR-6478AC device runs firmware 1.23.
- Verify management interfaces are not exposed to the internet.
- Check whether administrative access requires unique strong credentials.
- Review logs for unexpected authenticated configuration activity.
- Track vendor and CVE records for patch or mitigation updates.
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-119: 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 lookupCWE-121: 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-2026-10165 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
- Critical
- CVSS
- 9 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
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.
CVSS vector scores
4 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.
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR810VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R2.85.9VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R2.85.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P——VulDBVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 2.0 score
9CriticalVector: AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineVulDB
VulDB entry last update
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Source materials
- CVE List V5 sourceCVE List V5
- VDB-367419 | Edimax BR-6478AC POST Request formWanTcpipSetup stack-based overflowCVE reference, VulDB · vdb-entry, technical-description
- VDB-367419 | CTI Indicators (IOB, IOC, IOA)CVE reference, VulDB · signature, permissions-required
- Submit #818601 | Edimax BR6478ACV2 BR6478ACV2_v1.23 Buffer OverflowCVE reference, VulDB · third-party-advisory
- https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formWanTcpipSetup-34b53a41781f8013a811da2b3c8b7aa3?source=copy_linkCVE reference, VulDB · exploit
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.
Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.