PatchSiren cyber security CVE debrief

CVE-2025-3285 Rockwell Automation CVE debrief

CVE-2025-3285 affects Rockwell Automation Arena and is rated CVSS 7.8 (High). CISA’s advisory describes a local code execution flaw caused by improper validation of user-supplied data, allowing a read outside the allocated memory buffer. In practical terms, a legitimate user must open a malicious DOE file for the issue to be triggered, and successful exploitation could disclose information and execute arbitrary code on the system. The advisory was published on 2025-04-10 and later revised on 2025-05-06 for typo fixes only.

Vendor: Rockwell Automation
Product: Arena
CVSS: HIGH 7.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2025-04-10
Original CVE updated: 2025-05-06
Advisory published: 2025-04-10
Advisory updated: 2025-05-06

Who should care

Organizations running Rockwell Automation Arena, especially versions up to 16.20.08, should care most. This includes OT/ICS operators, plant engineers, endpoint security teams, and anyone responsible for reviewing file-handling risk on systems where users may open DOE files.

Technical summary

CISA’s CSAF advisory lists Rockwell Automation Arena: <=16.20.08 as affected. The weakness is described as improper validation of user-supplied data leading to a read outside the allocated memory buffer. The CVSS v3.1 vector provided by the advisory is AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, reflecting local exploitation conditions and required user interaction. The source text states that a legitimate user must open a malicious DOE file, and the impact can include information disclosure and arbitrary code execution.

Defensive priority

High priority for systems that use Arena and handle untrusted or externally supplied DOE files. The required user interaction lowers immediacy compared with fully remote flaws, but the potential impact is severe and the affected version range is broad.

Recommended defensive actions

Upgrade Rockwell Automation Arena to version 16.20.09 or later.
Restrict and carefully review DOE files before opening them on systems running Arena.
Apply Rockwell Automation’s published security best practices for industrial automation control systems.
Use CISA ICS recommended practices to reduce exposure on OT/ICS assets.
Limit user permissions and isolate engineering workstations where feasible to reduce the impact of a successful exploit.

Evidence notes

All substantive claims are taken from the CISA CSAF advisory ICSA-25-100-07 and its embedded product/remediation fields. The advisory states the affected product as Rockwell Automation Arena: <=16.20.08, describes the issue as a local code execution vulnerability from improper validation of user-supplied data, and notes that exploitation requires a legitimate user to open a malicious DOE file. The advisory was initially published on 2025-04-10 and revised on 2025-05-06 for typo fixes.

Official resources

CISA published the advisory for CVE-2025-3285 on 2025-04-10 and later revised it on 2025-05-06 for typo corrections. No KEV listing is provided in the supplied data.