CVE-2026-85452 MOOS ui-moos through 50b9c6c uMS Buffer Overflow via Long MOOS Identifiers
Attackers can execute arbitrary code by supplying long MOOS identifiers that trigger a buffer overflow in the UI application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-85452?
CVE-2026-85452 is a high-severity memory corruption vulnerability in themoos ui-moos, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-787
Which versions are affected by CVE-2026-85452?
How do I fix CVE-2026-85452?
No fix has been published for CVE-2026-85452 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-85452 being exploited?
There is no known exploitation of CVE-2026-85452 in the wild and no public exploit code.
Sources
Also known as GHSA-44c2-mhg8-554v.