# CVE-2026-85433

## Summary

- **CVE ID:** CVE-2026-85433
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-862
- **Published:** Sep 3, 2026
- **Last Modified:** Sep 14, 2026

## Description

MOOS essential-moos pShare through 10.0.1 fails to properly authorize PSHARE_CMD messages, allowing any publisher to reconfigure network routes and listeners at runtime. Attackers can send crafted PSHARE_CMD messages with cmd=output or cmd=input parameters to open new listeners on arbitrary addresses and redirect or duplicate bus traffic to attacker-controlled destinations.

## Affected Products

- themoos — essential-moos (0)

## References

- [CNA](https://github.com/themoos/essential-moos/pull/20)
- [CNA](https://github.com/themoos/essential-moos/commit/8e51cedcbd8de9781adec2e9cce354f51750a547)
- [CNA](https://github.com/themoos/essential-moos)
- [CNA](https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pShare/Share.cpp#L813)
- [CNA](https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pshare-unauthorized-runtime-route-reconfiguration)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.34%
- **EPSS Percentile:** 26.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._