CVE-2026-85437
MOOS‑IvP buffer overflows allow RCE via crafted IvP function encoded strings
Is CVE-2026-85437 being exploited?
Not confirmed. CVE-2026-85437 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 0.68% probability of exploitation in the next 30 days.
How severe is CVE-2026-85437?
CVE-2026-85437 is rated Critical with a CVSS score of 9.3. 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-2026-85437?
Yes. A fix has been recorded for CVE-2026-85437. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85437 affect?
CVE-2026-85437 affects MOOS‑IvP <= 24.8.1, IvP function string decoders, MOOS variable/alog parsers. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85437?
Upgrade to patched MOOS‑IvP or apply the upstream commit/PR immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution by sending malformed IvP encoded strings that overflow heap/stack, corrupt MOOS variables or alog files.
Immediate action required
- affected<= 24.8.1
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.