Oracle E-Business Suite MWA is widely deployed in enterprises; unauthenticated remote takeover risk can disrupt business systems.
CVE-2026-83464
Unauthenticated remote takeover of Oracle Mobile Application Server (Oracle EBS MWA).
Is CVE-2026-83464 being exploited?
Not confirmed. CVE-2026-83464 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 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-83464?
CVE-2026-83464 is rated High with a CVSS score of 8.1. 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-2026-83464?
Yes. A fix has been recorded for CVE-2026-83464. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-83464 affect?
CVE-2026-83464 affects Oracle Mobile Application Server (MWA Terminal Server) 12.2.3–12.2.15, Oracle E-Business Suite (MWA component). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-83464?
Follow Oracle advisory; apply vendor patches/mitigations ASAP and restrict network/TCP access to MWA servers.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote compromise of Oracle Mobile Application Server allowing full takeover, data theft, integrity loss and lateral movement.
Immediate action required
- affected>= 12.2.3 and <= 12.2.15
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.