CVE-2026-85433: themoos essential-moos

CVSS 9.8 (critical) · published 2026-09-03

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 (NVD): themoos essential-moos

Weakness: CWE-862

Source: NVD CVE-2026-85433

References

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

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