---
id: CVE-2026-85447
title: >-
  MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ
  subscriptions without validating duration or variable list limits
summary: >-
  MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ
  subscriptions without validating duration or variable list limits. Attackers
  can register long-lived pipeways with many variables to cause pRealm to
  generate excessiv…
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'
cwe:
  - CWE-770
published: '2026-09-03'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:07:17.943'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85447'
references:
  - url: 'https://github.com/moos-ivp/moos-ivp'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/pRealm/PipeWay.cpp#L109
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/moos-ivp/moos-ivp/commit/8a4bb9d9154a70e769a7290ee11dde5157c03e9b
    label: disclosure@vulncheck.com
  - url: 'https://github.com/moos-ivp/moos-ivp/pull/132'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-prealm-unbounded-realmcast-req-subscription-denial-of-service
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.0035
epssPercentile: 0.28754
ingestedAt: '2026-09-08T20:10:03.162Z'
---

## Overview

MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ subscriptions without validating duration or variable list limits. Attackers can register long-lived pipeways with many variables to cause pRealm to generate excessive output indefinitely, exhausting system resources.

## Remediation

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