CVE-2025-11743 | BDVDB-2026-311239 Detail

Rockwell AutomationCompactLogix® 5370

Description#

A denial-of-service security issue in the affected product. The security issue occurs when a malformed CIP forward open message is sent. This could result in a major nonrecoverable fault a restart is required to recover.

Impact#

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

Weaknesses#

CWE-1284 Improper Validation of Specified Quantity in Input

References#

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1770.html

Exploit#

No public exploit known

History#

Version 12026-01-20Record published in the CVE List.

Published

Published: 2026-01-20
Last modified: 2026-01-20

Vendor information

Vendor: Rockwell Automation
Product: CompactLogix® 5370

All Rockwell Automation vulnerabilities

Score

7.1 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 7.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

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

Affected Systems

Vulnerable
Version 34.013 and prior, Version 35.012 and prior, Version 36.011
Fixed
Not stated

Scoring System

CVSS v4.0

7.1 High

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

Metric breakdown
Attack Vector	Adjacent
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
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).