CVE-2026-85433CWE-862broken-access-control

CVE-2026-85433

Critical · published September 4, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
55.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · 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
EPSS
0.00771 · 55.2th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-04T03:17Z
Affected products (1)
ProductVersionsFixed in
themoos/essential-moos≤ 10.0.1—
References (5)
https://github.com/themoos/essential-moos · [email protected]https://github.com/themoos/essential-moos/blob/b897ea86dba8b61412dc48ac0cfb5ff34cdaf5f6/Essentials/pShare/Share.cpp#L813 · [email protected]https://github.com/themoos/essential-moos/commit/8e51cedcbd8de9781adec2e9cce354f51750a547 · [email protected]https://github.com/themoos/essential-moos/pull/20 · [email protected]https://www.vulncheck.com/advisories/moos-essential-moos-through-10.0.1-pshare-unauthorized-runtime-route-reconfiguration · [email protected]
EPSS history
Timeline
  • 05 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 03 SEP 22:38Z
    MOOS essential-moos through 10.0.1 pShare Unauthorized Runtime Route Reconfiguration
    cvelistv5