CVE-2025-2829: 
NixOS vulnerability analysis and mitigation

A local code execution vulnerability (CVE-2025-2829) was discovered in Rockwell Automation Arena® software, affecting versions 16.20.08 and prior. The vulnerability was disclosed on April 8, 2025, and is related to improper validation of user-supplied data that allows writing outside of allocated memory buffers (Rockwell Advisory, CISA Advisory).

The vulnerability is classified as an Out-of-bounds Write (CWE-787) issue. It received a CVSS v3.1 base score of 7.8 (High) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H and a CVSS v4.0 base score of 8.5 (High) with vector string CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. The vulnerability requires local access and user interaction through opening a malicious DOE file (CISA Advisory, Rockwell Advisory).

If successfully exploited, this vulnerability allows an attacker to disclose information and execute arbitrary code on the affected system. The high severity rating indicates potential for significant impact on system confidentiality, integrity, and availability (CISA Advisory, Rockwell Advisory).

Rockwell Automation has released version 16.20.09 to address this vulnerability. Users are recommended to upgrade to this version or later. For users unable to upgrade immediately, Rockwell Automation recommends following their security best practices (Rockwell Advisory).