CVE-2026-12807
Edimax BR-6478AC V2 POST Request setWAN command injection
Description
A vulnerability was found in Edimax BR-6478AC V2 1.23. This affects the function setWAN of the file /goform/setWAN of the component POST Request Handler. The manipulation of the argument pppUserName/pptpUserName/L2TPUserName results in command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
INFO
Published Date :
June 21, 2026, 9:16 p.m.
Last Modified :
June 22, 2026, 6:24 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Sanitize all user-supplied input for command execution.
- Validate and restrict input to expected values.
- Implement input validation on provided arguments.
- Update to a secure firmware version when available.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-12807.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12807 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-12807
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12807 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12807 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 22, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-12807', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-22T13:22:52.635470Z'} -
New CVE Received by [email protected]
Jun. 21, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:edimax:br-6478ac_v2:*:*:*:*:*:*:*:*'], 'vendor': 'Edimax', 'modules': ['POST Request Handler'], 'product': 'BR-6478AC V2', 'versions': [{'status': 'affected', 'version': '1.23'}]}] Added Description A vulnerability was found in Edimax BR-6478AC V2 1.23. This affects the function setWAN of the file /goform/setWAN of the component POST Request Handler. The manipulation of the argument pppUserName/pptpUserName/L2TPUserName results in command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CWE CWE-77 Added CWE CWE-74 Added Reference https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-setWAN-34b53a41781f80b98c4be24d8cae61b1?source=copy_link Added Reference https://vuldb.com/cve/CVE-2026-12807 Added Reference https://vuldb.com/submit/836669 Added Reference https://vuldb.com/vuln/372601 Added Reference https://vuldb.com/vuln/372601/cti