CVE-2026-12655 | BDVDB-2026-386558 Detail

Rockwell Automation1732E ArmorBlock® I/O

Description#

A security issue exists within 1732E ArmorBlock® I/O, where an unauthenticated attacker can change the device's webserver password without valid credentials. This could result in admin account takeover or unauthorized modification of device configuration.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-294 Authentication Bypass by Capture-replay

References#

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1801.html

Exploit#

No public exploit known

History#

Version 12026-10-13Record published in the CVE List.
Version 22026-10-15Most recent update recorded in the CVE List.

Published

Published: 2026-10-13
Last modified: 2026-10-15

Vendor information

Vendor: Rockwell Automation
Product: 1732E ArmorBlock® I/O

All Rockwell Automation vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 19.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 3.012
Fixed
Not stated

Scoring System

CVSS v4.0

8.8 High

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	High
Vulnerable System Availability	High
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).