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TI-2026-08306 Aliases CVE-2026-9459GHSA-hwrg-8cjq-3gj6

Edimax EW-7438RPn formConnectionSetting stack-based overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A security flaw has been discovered in Edimax EW-7438RPn 1.31. This affects the function formConnectionSetting of the file /goform/formConnectionSetting. Performing a manipulation of the argument max_Conn/timeOut results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00751 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
EdimaxEW-7438RPn1.31—No fix listedCNA
  • EW-7438RPn VendorEdimax Affected 1.31 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:edimax:ew-7438rpn:*:*:*:*:*:*:*:*——Edimax
  • cpe:2.3:a:edimax:ew-7438rpn:*:*:*:*:*:*:*:* Versions — — ·Edimax

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-9459
  2. 2026-10-03 Alias added: GHSA-hwrg-8cjq-3gj6

References

Exploit 1

  • TI-2025-01129 Edimax IC-7100 IP Camera OS Command Injection KEVCVSS 4.0CRITICAL 9.3
  • TI-2026-85269 Edimax BR-6208AC mp command injection CVSS 4.0CRITICAL 10.0
  • TI-2026-71231 Command injection in Edimax BR-6208AC via formWlanMP CVSS 4.0CRITICAL 10.0
  • TI-2026-71230 Command injection in Edimax BR-6208AC via tftpsIP argument CVSS 4.0CRITICAL 10.0
  • TI-2025-28873 EDIMAX CV7428NS v1.20 was discovered to contain a remote code execution (RCE)… CVSS 3.1CRITICAL 9.8
  • TI-2025-20734 Edimax AC1200 Wave 2 Dual-Band Gigabit Router BR-6478AC V3 1.0.15 was discovered to… CVSS 3.1CRITICAL 9.8
See all 158 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences