CVE-2026-3611

Katalog CVE

CVSS 10.0 · Critical EPSS 1,0%

Kerentanan Missing Authentication for Critical Function pada honeywell iq4e firmware, honeywell iq412 firmware +3 lainnya. Skor CVSS 3.1 10.0 (Critical) menurut NVD.

Deskripsi (NVD)

The Honeywell IQ4x building management controller, exposes its full web-based HMI without authentication in its factory-default configuration. With no user module configured, security is disabled by design and the system operates under a System Guest (level 100) context, granting read/write privileges to any party able to reach the HTTP interface. Authentication controls are only enforced after a web user is created via U.htm, which dynamically enables the user module. Because this function is accessible prior to authentication, a remote user can create a new account with administrative read/write permissions enabling the user module and imposing authentication under attacker-controlled credentials. This action can effectively lock legitimate operators out of local and web-based configuration and administration.

Rincian

Terbit di NVD

12 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

10.0 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-306: Missing Authentication for Critical Function

EPSS (30 hari)

1,0% peluang dieksploitasi; lebih tinggi dari 62,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.cisa.gov/news-events/ics-advisories/icsa-26-069-03 advisory pihak ketiga · pemerintah AS
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-069-03.json issue tracking
• https://www.honeywell.com/us/en/contact product