---
id: CVE-2025-66969
title: 'Integer overflow in OpenModSim (<=1.11.0), leading to denial of service'
summary: 'Integer overflow in OpenModSim (<=1.11.0), leading to denial of service'
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-21T01:59:19.047228Z'
published: '2026-10-16'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T02:00:04.759Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-66969'
references:
  - url: 'https://github.com/sanny32'
  - url: 'https://github.com/sanny32/OpenModSim'
  - url: >-
      https://github.com/PRISMI-Team/VulnDisclos/blob/main/Application/openmodsim/openmodsim.md
tags:
  - cve.org
epss: 0.00339
epssPercentile: 0.27161
ingestedAt: '2026-10-16T18:43:08.628Z'
---

## Overview

Integer overflow in OpenModSim (<=1.11.0), leading to denial of service

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.