CVE-2025-11918: Rockwell Automation Arena® suffers from a stack-based buffer overflow vulnerability

Q: How do I fix CVE-2025-11918?

arena: upgrade to 16.20.11. Exact commands for each OS are on this page.

Q: Is CVE-2025-11918 being exploited?

CVE-2025-11918 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-11918 affect?

CVE-2025-11918 affects arena. Severity is high (CVSS 7.3). Rockwell Automation Arena® suffers from a stack-based buffer overflow vulnerability. The specific flaw exists within the parsing of DOE files. Local attackers are able to exploit this issue to potentially execute arbitrary code on affected

Routine

HIGH 7.3UPGRADE

CVE-2025-11918 is a high-severity flaw (CVSS 7.3) affecting arena. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Rockwell Automation Arena® suffers from a stack-based buffer overflow vulnerability. The specific flaw exists within the parsing of DOE files. Local attackers are able to exploit this issue to potentially execute arbitrary code on affected installations of Arena®. Exploiting the vulnerability requires opening a malicious DOE file.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-121
Published	2025-11-14
Last modified	2026-10-07

Publisher (CNA): Rockwell Automation · Vendor: rockwellautomation

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-14 14:15 UTCPublished CVE record published
2026-10-07 21:10 UTCUpdated Record last modified

rockwellautomation arena UPGRADE

Affected: < 16.20.11

Fixed in: 16.20.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy arena || rpm -q arena || arena --version

2. UPGRADE to 16.20.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade arena

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade arena

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-11918?

arena: upgrade to 16.20.11. Exact commands for each OS are on this page.

Is CVE-2025-11918 being exploited?

CVE-2025-11918 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-11918 affect?

CVE-2025-11918 affects arena. Severity is high (CVSS 7.3). Rockwell Automation Arena® suffers from a stack-based buffer overflow vulnerability. The specific flaw exists within the parsing of DOE files. Local attackers are able to exploit this issue to potentially execute arbitrary code on affected

How urgent is CVE-2025-11918?

Priority 27/100. High severity

Software pages

Rockwell Automation vulnerabilities

Related CVEs

CVE-2026-8085 HIGH 7.3 UPGRADE A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the model.exe (Si
CVE-2026-8312 HIGH 7.3 UPGRADE A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the expmt.exe (Si
CVE-2026-8313 HIGH 7.3 UPGRADE A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the linker.exe (S
CVE-2026-8314 HIGH 7.3 UPGRADE A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the siman.exe (Si
CVE-2025-7033 HIGH 7.8 UPGRADE A memory abuse issue exists in the Rockwell Automation Arena® Simulation

References

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