8.8High
CVE-2026-85452
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.
What this means for your business
- An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.
- FIRST's prediction model gives it a 0.4% chance of attack attempts being seen in the next 30 days, ranking above 31% of all known flaws.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 8.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- CVSS v4
- 8.7
- Weakness
- CWE-787
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-09-03
- Last modified
- 2026-09-08
- Sources
- NVD
References
- https://github.com/themoos/ui-moos
- https://github.com/themoos/ui-moos/blob/50b9c6c65169c501f746cfef1e167f74a7735e74/Tools/Graphical/uMS/ScopeTabPane.cpp#L243
- https://github.com/themoos/ui-moos/commit/a6ebc0bc6cb360315ce620e865f996d189cddb0e
- https://github.com/themoos/ui-moos/pull/5
- https://www.vulncheck.com/advisories/moos-ui-moos-through-50b9c6c-ums-buffer-overflow-via-long-moos-identifiers