CVE-2026-85452
Buffer overflow in ui-moos allows code execution via long MOOS identifiers.
Is CVE-2026-85452 being exploited?
Not confirmed. CVE-2026-85452 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.38% probability of exploitation in the next 30 days.
How severe is CVE-2026-85452?
CVE-2026-85452 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-85452?
Yes. A fix has been recorded for CVE-2026-85452. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85452 affect?
CVE-2026-85452 affects ui-moos (MOOS UI) <=50b9c6c, Builds or deployments using the vulnerable ui-moos source. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85452?
Update ui-moos to the patched commit or apply the fix; block/sanitize untrusted identifiers.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary remote code execution by supplying long MOOS identifiers that overflow fixed sprintf buffers when viewing or poking variables.
Immediate action required
- affected<= 50b9c6c
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.