CVE-2026-3868
CVE-2026-3868
An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa’s Secure Router. Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive. Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation. While successful exploitation can severely impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| EDR-8010 Series Moxa |
≥ 1.0; ≤ 3.23 (affected, custom) 3.24 (unaffected, custom) Other versions: unaffected |
CNA: Moxa |
| EDR-G9010 Series Moxa |
≥ 1.0; ≤ 3.23.1 (affected, custom) 3.24 (unaffected, custom) Other versions: unaffected |
CNA: Moxa |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA: Moxa |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.