Log in / Sign up

Vulnerability details

CVE-2026-9443

Edimax BR-6478AC

Edimax BR-6478AC POST Request formL2TPSetup buffer overflow

CVSS 4.0
8.7High

Official description

A security vulnerability has been detected in Edimax BR-6478AC 1.23. This vulnerability affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. The manipulation of the argument L2TPUserName leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS scores

ScoreVersionSourceVector
8.7High 4.0 CVEProject cvelistV5 (CNA) (VulDB) 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
8.8High 3.1 CVEProject cvelistV5 (CNA) (VulDB) 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
8.8High 3.0 CVEProject cvelistV5 (CNA) (VulDB) 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
9.0High 2.0 CVEProject cvelistV5 (CNA) (VulDB) AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Affected products

VendorProductVersionsSource
Edimax BR-6478AC 1.23 CVEProject cvelistV5 (CNA)

References and advisories

4
Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published
2026-05-25
Last updated
2026-05-26
State
Published
Assigner (CNA)
VulDB

Exploit prediction (EPSS)

0.58%
Probability of exploitation in 30 days
48.3%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
Proof of concept
Technical impact
Total

Weaknesses (CWE)

  • CWE-120
    Buffer Overflow
  • CWE-119
    Memory Corruption