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Vulnerabilities

Vulnerability · CVE-2026-12655

1732E ArmorBlock® - Multiple Vulnerabilities

Published Oct 13, 2026 · catalog updated Oct 15, 2026 · Rockwell Automation 1732E ArmorBlock® I/O

Check if you run it

No confirmed exploitation is on record for CVE-2026-12655. EPSS is 0.27%. Act only if a listed version of Rockwell Automation 1732E ArmorBlock® I/O is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.27%
Remediation
Advisory link
Affected products
vendor Rockwell Automation 1732E ArmorBlock® I/O

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Rockwell Automation 1732E ArmorBlock® I/Oversion unspecified

How to fix CVE-2026-12655

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-12655. EPSS is 0.27%. Act only if a listed version of Rockwell Automation 1732E ArmorBlock® I/O is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-294. EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · CIRCL Vulnerability Lookup

    Detected

    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.

  2. Oct 15, 2026 · CIRCL Vulnerability Lookup

    Updated

    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.

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-12655

    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.

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-12655

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-12655

    30-day exploitation probability 0.3%

    first.org

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.