CVE-2026-85447
Unbounded REALMCAST_REQ subscriptions enable remote DoS via resource exhaustion
Is CVE-2026-85447 being exploited?
Not confirmed. CVE-2026-85447 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 0.35% probability of exploitation in the next 30 days.
How severe is CVE-2026-85447?
CVE-2026-85447 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-2026-85447?
Yes. A fix has been recorded for CVE-2026-85447. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85447 affect?
CVE-2026-85447 affects MOOS-IvP pRealm <= 24.8.1, MOOS-IvP (ivp/src/pRealm). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85447?
Upgrade MOOS‑IvP/pRealm to the patched commit/release or apply the vendor patch.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote denial-of-service: attackers can register long-lived, high-variable subscriptions causing continuous output that exhausts CPU/memory and crashes or hangs pRealm.
Patch when possible
- 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.