# CVE-2026-85450 — themoos core-moos

> As of 2026-09-04, CVE-2026-85450 is a HIGH-severity vulnerability in themoos core-moos, CVSS v3.1 7.5, EPSS 0.3% (27.9th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-85450 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-2026-85450?

MOOS core-moos through 10.4.0 contains a denial of service vulnerability in the MOOSDB HTTP server that creates unbounded connections and threads without limits. Attackers can open many connections and send endless header data to exhaust server threads and memory, causing service unavailability.

The record classifies CVE-2026-85450 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-2026-85450 being exploited?

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

## Affected products and versions

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

## How to fix CVE-2026-85450

No vendor patch reference has been recorded for CVE-2026-85450 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-2026-85450

No threat campaign in the Threadlinqs corpus currently references CVE-2026-85450, 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, NVD, GitHub Security Advisories, FIRST EPSS. Last verified by Threadlinqs on 2026-09-05. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — issue tracking](https://github.com/themoos/core-moos/pull/79)
- [github.com — patch](https://github.com/themoos/core-moos/commit/dfef92b3bc31886bc47e4d680aef583b78cb8d72)

**Technical analysis**

- [github.com — technical description](https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/HTTPConnection.cpp#L167)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-http-server-resource-exhaustion)

**Issue tracking and product pages**

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

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-85450
Full detection coverage and IOCs for threats exploiting CVE-2026-85450 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp