Vulnerability · Published Sep 3, 2026 · Assigned by VulnCheck

CVE-2026-85452MOOS ui-moos through 50b9c6c uMS Buffer Overflow via Long MOOS Identifiers

High 8.8

In plain English

A high-severity out-of-bounds write in ui-moos from themoos. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.7%top 46.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

MOOS ui-moos through 50b9c6c contains a buffer overflow vulnerability in ScopeTabPane.cpp and ScopeGrid.cpp where client and variable names are formatted into fixed 1024-byte buffers using sprintf without length validation. Attackers can supply arbitrarily long MOOS identifiers that overflow the buffers when an operator selects process list entries or pokes variables, enabling code execution.

Affected products (as reported)

Vendor	Product	Versions
themoos	ui-moos	0 – through 50b9c6c

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Pull Request #5 issue-tracking, patch
Proposed fix commit (pull request not merged) patch
https://github.com/themoos/ui-moos product
ScopeTabPane.cpp (verified sink) technical-description
VulnCheck Advisory: MOOS ui-moos through 50b9c6c uMS Buffer Overflow via Long MOOS Identifiers third-party-advisory