# CVE-2026-85447 — moos-ivp

> As of 2026-09-04, CVE-2026-85447 is a HIGH-severity vulnerability in moos-ivp, CVSS v3.1 7.5, EPSS 0.3% (27.9th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-85447 as of 2026-09-04; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-04

## What is CVE-2026-85447?

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.

The record classifies CVE-2026-85447 under weakness class [CWE-770](https://intel.threadlinqs.com/cwe/CWE-770). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 32 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **CVSS v4.0 base score:** 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 27.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-03, last modified 2026-09-04

## Is CVE-2026-85447 being exploited?

It currently carries a trending score of 36 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [moos-ivp](https://intel.threadlinqs.com/vendors/moos-ivp): moos-ivp

## How to fix CVE-2026-85447

No vendor patch reference has been recorded for CVE-2026-85447 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-85447

No threat campaign in the Threadlinqs corpus currently references CVE-2026-85447, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-09-05.

**Vendor advisory and patch**

- [github.com — issue tracking](https://github.com/moos-ivp/moos-ivp/pull/132)
- [github.com — patch](https://github.com/moos-ivp/moos-ivp/commit/8a4bb9d9154a70e769a7290ee11dde5157c03e9b)

**Technical analysis**

- [github.com — technical description](https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/pRealm/PipeWay.cpp#L109)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-prealm-unbounded-realmcast-req-subscription-denial-of-service)

**Issue tracking and product pages**

- [github.com — product](https://github.com/moos-ivp/moos-ivp)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-85447
Full detection coverage and IOCs for threats exploiting CVE-2026-85447 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp