Affects Oracle E-Business Suite's Mobile Application Server (widely deployed enterprise software); allows unauthenticated network attacks causing DoS and unauthorized data modification.
CVE-2026-83465
Unauthenticated HTTP flaw can crash or modify Oracle Mobile Application Server (EBS).
Is CVE-2026-83465 being exploited?
Not confirmed. CVE-2026-83465 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.
How severe is CVE-2026-83465?
CVE-2026-83465 is rated High with a CVSS score of 8.2. 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-2026-83465?
Not known from our data. No patch reference has been recorded for CVE-2026-83465, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-83465 affect?
CVE-2026-83465 affects Oracle Mobile Application Server (MWA Terminal Server), Oracle E-Business Suite 12.2.3 - 12.2.15. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-83465?
Restrict HTTP access to MWA, apply vendor fixes ASAP when available, monitor logs and backups.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote attacker (network via HTTP, UI required) can cause complete DoS and unauthorized insert/update/delete of accessible data.
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.