What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-03 · updated 2026-09-08
• Weakness: CWE-787

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.

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

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